Tanner Boser vs Jhonata Diniz: analysis & prediction

PRELIM · HEAVYWEIGHT · 3 ROUNDSUFC Fight Night: Buckley vs. Malott
Tanner Boser — Heavyweight fighter

Tanner Boser

“The Bulldozer”
22W11L1D
Technical Striker
VS
Jhonata Diniz — Heavyweight fighter

Jhonata Diniz

9W2L
Muay Thai Sniper

Four extra inches of reach against fifteen minutes of arithmetic

HeavyweightRogers Place, Edmonton, Alberta, CanadaOctober 17, 2026Standard 30ft Octagon

Fight overview

The fight in 30 seconds

The recorded UFC sample contains no takedown attempts from either Boser or Diniz, so distance management and the quality of striking exchanges are the clearer tactical signals. A clinch or wrestling adjustment could change that picture; low observed usage should not be treated as an inability to grapple.

Paths that change the fight

  • Tanner BoserFifteen minutes. Eight career decision wins, six UFC third rounds, an average fight time of 10:52 and a Round-2 engine averaging 28 significant strikes landed at 58% — if this fight is still upright and competitive in minute eleven, it is his.
  • Jhonata DinizOne straight right down the middle, thrown from four inches further out than Boser is used to, inside the first ten minutes — the punch Gokhan Saricam found six months ago.
What limits this estimate · Analyst conviction: 5/10
  • Boser wins the rate card outright: 4.82 SLpM against 3.89, 3.00 absorbed against 3.62, 58% striking defence against 57%.
  • The leg-kick tax — 32% career leg targeting from a 43-inch leg reach, two inches longer than Diniz's, aimed at the exact asset a 255 lb sniper needs most.

Editorial assessment of the evidence, not a win probability or a calibrated confidence interval.

Tanner Boser

Insufficient price data
Model win probability
43%
Fair decimal odds
2.33
Reference quote—

Jhonata Diniz

Insufficient price data
Model win probability
57%
Fair decimal odds
1.75
Reference quote—
Price freshness & calculation notes

Quotes older than 48 hours are marked outdated. EV at an old or undated price is a historical calculation, not a current opportunity. Date-only snapshots have no verified capture time.

Sources and data limitations

Sources cited in this analysis: UFC.com. Statistics reflect the sample and reporting dates available for this matchup. Coverage can differ between fighters and may include bouts outside the UFC where noted. Unavailable measurements are not zeros. Projections, composite scores and analyst conviction are estimates, not observed outcomes.

Model methodology
Read the evidenceInspect prices and assumptions
01

The Frame

What this fight is really about — and the measurements that shape it

The Analyst's Take

Across thirty-eight logged UFC rounds between them, these two heavyweights have attempted a combined zero takedowns — Boser 0-for-0 in twenty-four, Diniz 0-for-0 in twelve. And every stoppage loss either man owns came from being put on his back: Boser to Ion Cutelaba's ground-and-pound and to Gokhan Saricam's knockdown-plus-follow-up, Diniz to Marcin Tybura's elbows and Mário Pinto's mount. Each fighter's fatal flaw is exploitable only by the one skill neither possesses, which turns this into fifteen minutes of pure kickboxing — and there Jhonata Diniz has two inches of height, four inches of reach, roughly eleven pounds, a GLORY and ACB heavyweight kickboxing pedigree, a 78% career knockout rate, and the freshest fact on the board: Tanner Boser was knocked down and finished standing for the first time in his UFC life six months ago, at 34, by a debutant. Boser owns the volume (4.82 to 3.89 SLpM), the absorption edge (3.00 to 3.62), a 43-inch leg reach two inches longer than Diniz's, eight career decision wins, a genuine third-round engine, and Rogers Place — the building where his 2019 hometown debut was cancelled the day before the card.

Tanner Boser
Attribute
Jhonata Diniz
35
Age
35
6'2" (74")
Height
6'4" (76")
75.5"
Reach
+4" Diniz79.5"
43"+2" Boser
Leg Reach
41"
Orthodox
Stance
Orthodox
Bulldozer MMA, Edmonton
Team
Santa Fé Team, Curitiba
Oct 18, 2019
Octagon Debut
Apr 27, 2024
Karate base — distance accumulator, leg-kick first
Fighting Style
Muay Thai black belt — kickboxing champion, distance sniper

Length and mass to Diniz, engine and technique to Boser. Diniz is the bigger man on every axis that matters at heavyweight: two inches taller, four inches longer, roughly eleven pounds heavier at the last recorded weigh-ins — 244.5 lb for Boser in Winnipeg in April 2026 against Diniz's ~254–257.5 lb. Boser has spent the back half of his career as one of the division's smallest heavyweights; he made the 205 lb light-heavyweight limit twice in 2022–23, against Ion Cutelaba and Aleksa Camur, before bulking back up for the April return. His only physical counter is the 43-inch leg reach, two inches longer than Diniz's, and that is not a decorative stat for him: 41.3% of everything he lands in Round 1 goes to the legs, and he once put 21 of 22 leg kicks on Andrei Arlovski in a single third round. Diniz, by contrast, is a head-hunter whose targeting climbs from 70.2% head in Round 1 to 84.0% in Round 3 — a man looking for one shot, not an accumulation.

Venue Factor
Rogers Place owes Tanner Boser a night. His hometown UFC debut was booked here for UFC 240 on July 27, 2019 against Giacomo Lemos, and it was scrapped the day before the card when Lemos failed a drug test and drew a two-year ban. Boser debuted three months later in Boston instead, and UFC.com's profile still lists his Octagon debut as July 27, 2019 — a ghost date for a fight that never happened. Seven years and eleven Octagon appearances later, at 35 and coming off the first standing knockdown of his UFC career, he finally gets the walk he was promised. That is worth real early adrenaline, and adrenaline is exactly what a man with four extra inches of reach and one-shot power wants his opponent to be running on.
02

The Fighters

Careers, chins, schedules — and the form they bring into the cage

Tanner Boser landing a punch on Ovince Saint Preux

Tanner Boser

Pro Record
22-11-1
UFC Record
5-6 across eleven bouts since October 2019
Streak
Lost his last — TKO to Gokhan Saricam at 4:43 of R2 (Apr 18, 2026)
Finish Rate
~64% (14 of 22 wins) — 12 KO/TKO, 2 submission
Avg Fight Time
10:52
Chin · Durable but cracking — zero knockdowns absorbed in his first ten Octagon fights, then dropped and finished standing by Saricam at 34SOS · Elite gatekeeper tapeTechnical Striker / Counter Striker

The veteran on the way down, and the arc is legible. A 2019–2021 run produced three UFC finishes — Philipe Lins, Raphael Pessoa and Ovince Saint Preux — alongside four painfully close decision losses to Ciryl Gane, Andrei Arlovski, Ilir Latifi (split) and Rodrigo Nascimento (split). Then came a 2022–23 detour to light heavyweight, a release in 2023, two years in the wilderness, and a seventeen-month layoff broken by a UAE Warriors win over Vinicius Moreira before the UFC brought him back. That return ended with Gokhan Saricam dropping him with a straight right and finishing him on the ground at 4:43 of Round 2 — the first time in eleven Octagon appearances anyone had put him down standing. For a decade, beating Tanner Boser meant out-pointing him: his loss mix reads nine decisions, two TKOs and zero submissions. Since 2023 it has twice meant finishing him.

Jhonata Diniz striking in the Octagon

Jhonata Diniz

Pro Record
9-2-0
UFC Record
3-2 across five bouts since April 2024
Streak
Lost his last — TKO from mount to Mário Pinto at 4:10 of R2 (Oct 11, 2025)
Finish Rate
~78% (7 of 9 wins) — all by KO/TKO, six of them in Round 1
Avg Fight Time
9:56
Chin · Never dropped or finished standing in the Octagon — both stoppage losses came from bottom position, a cut and a mountSOS · Gatekeeper and belowMuay Thai Fighter / Clinch-Heavy Nak Muay

A narrower and stranger arc: six consecutive first-round regional finishes across Spartacus, Metanoia and Imortal FC, a first-round knockout on Dana White's Contender Series in September 2023 to earn the contract, and a Round-2 knockout of Austen Lane in his Octagon debut. Then two entirely conventional decision wins over Karl Williams and Alvin Hines, sandwiching two entirely conventional maulings by Marcin Tybura and Mário Pinto. Behind the record sits a genuine kickboxing pedigree — ACB Kickboxing heavyweight champion in 2016, 2021 Tatneft Cup +80 kg champion, a GLORY and SUPERKOMBAT veteran at roughly 15-6. He has never solved a wrestler and he has never needed to solve a striker, and he arrives on a twelve-month layoff carrying around 255 lb on a 6'4" frame at 35.

Tanner Boser
0 dealt · 0 absorbed
Knockdown Exchange
KD dealt vs absorbed. A dash means that figure was not published.
Jhonata Diniz
0 dealt · 0 absorbed

Tanner Bosersignature weapons

Punches at DistancePhilipe Lins at 2:41 of R1 and Raphael Pessoa off a left hook into ground-and-pound at 2:36 of R2, both in 2020
×2
Knee and PunchesOvince Saint Preux, R2 2:31, June 2021 — his most recent Octagon finish
×1
Leg-Kick AccumulationVinicius Moreira retired on the stool after three rounds at UAE Warriors 60; 32% career leg targeting from a 43" leg reach, and 21 of 22 leg kicks landed on Andrei Arlovski in one round
×1

Jhonata Dinizsignature weapons

Straight Right at DistanceAusten Lane, KO at 2:12 of R2, April 2024 — his only Octagon finish and the only knockdown in his twelve logged UFC rounds
×1
First-Round Regional KnockoutsGuelke, Andrade, Lazzarini, Nascimento, Duarte and Neves — all stopped inside one round between May 2022 and DWCS 62 in September 2023, none of it UFC tape
×6

Tanner Boser

L
Gokhan Saricam
TKO — straight right, then ground punches

Opponent context: prospect

RR2 (4:43)
UFC Fight Night, Winnipeg — Apr 18, 2026
W
Vinicius Moreira
TKO — retirement

Opponent context: prospect

RR3 (1:55)
UAE Warriors 60 — Jun 13, 2025
W
Aleksa Camur
Decision — Unanimous (30-27 ×3)

Opponent context: prospect

RR3
UFC FN: Sandhagen vs. Font — Aug 5, 2023
L
Ion Cutelaba
TKO — punches on the ground

Opponent context: veteran

RR1 (2:05)
UFC FN: Holloway vs. Allen — Apr 15, 2023
L
Rodrigo Nascimento
Decision — Split (27-30, 29-28, 28-29)

Opponent context: veteran

RR3
UFC FN: Sandhagen vs. Song — Sep 17, 2022
Pattern

2-3, and both losses in the sample are stoppages — a genuine break from a career built on losing decisions. The Camur win is his best modern tape: 120 significant strikes landed across three rounds at better than 55% accuracy, 5:15 of control time, a 30-27 sweep. The Cutelaba loss is a wrestling loss dressed as a knockout — one takedown, 30 of 40 landed including 16-for-16 on the ground, done in 125 seconds. The Saricam loss is the alarming one: no takedown was scored against him at all. Saricam simply out-boxed him for a round and a half and then put him down with a straight right down the middle. Boser is 1-3 in his last four Octagon-caliber outings and has now been stopped twice in three years after never being stopped in the first decade of his career.

Jhonata Diniz

L
Mário Pinto
TKO — punches to the head from mount

Opponent context: prospect

RR2 (4:10)
UFC FN: Oliveira vs. Gamrot, Rio — Oct 11, 2025
W
Alvin Hines
Decision — Unanimous (29-28 ×3)

Opponent context: prospect

RR3
UFC 317: Topuria vs. Oliveira — Jun 28, 2025
L
Marcin Tybura
TKO — doctor's stoppage (cut)

Opponent context: veteran

RR2 (5:00)
UFC 309: Jones vs. Miocic — Nov 16, 2024
W
Karl Williams
Decision — Unanimous (30-27, 29-28, 29-28)

Opponent context: prospect

RR3
UFC FN: Tybura vs. Spivac 2 — Aug 10, 2024
W
Austen Lane
KO — punch at distance

Opponent context: prospect

RR2 (2:12)
UFC FN: Nicolau vs. Perez — Apr 27, 2024
Pattern

3-2, and the split is perfectly clean along one axis — he beat the two men who stood with him and lost to the two men who took him down. Against Lane, Hines and Williams, standing, he landed 32-of-55, 37-of-60, 43-of-67 and 36-of-60 in the rounds where he was allowed to work: high-accuracy, escalating, comfortable. Against Tybura he was taken down, held for 7:14 of control across two rounds, and opened up with elbows until the doctor waved it. Against Pinto he was taken down twice in Round 1, controlled for 7:28, submission-threatened twice, and pounded out from mount. In those two fights his combined offensive output was sixteen significant strikes in four rounds. This is not a durability problem — it is a position problem, and it has never once been a striking problem.

Tanner Boser

Win Methods
Wins by Round

Jhonata Diniz

Win Methods
Wins by Round
Critical Insight
The donuts are career and official — Boser's 12 KO / 8 decision / 2 submission across 22 wins, Diniz's 7 KO / 2 decision across 9 — but the round bars are scoped to Octagon wins only, five for Boser and three for Diniz. That is deliberate. Boser's regional-era finishes carry no published round, and all six of Diniz's first-round knockouts came against Spartacus, Metanoia and Imortal FC opposition; his only UFC finish took until 2:12 of Round 2. Read the two tables side by side and the shape of the night falls out. Diniz has ended 78% of his wins early and has never fought past fifteen minutes. Boser has taken 36% of his wins to the cards, owns six UFC trips to the horn, and has an average fight time nearly a minute longer. Diniz's power is the single most dangerous object in the fight; Boser's engine is the single most reliable one. And both of the decisions Diniz owns were 29-28 cards against opponents who out-landed him in at least one round — he does not bank rounds comfortably, he squeaks them.

Opposition strength (no shared opponents)

Without a reliable shared-opponent table, compare who each fighter has been tested against using SOS tier, UFC sample size, and recent elite-tier form — not raw records alone.

FactorTannerJhonata
Strength of schedule (SOS tier)Elite gatekeeper tape — Shared the cage with Ciryl Gane, Andrei Arlovski, Ilir Latifi, Ovince Saint Preux, Rodrigo Nascimento and Ion Cutelaba — and completed fifteen minutes in four of those fightsGatekeeper and below — No ranked win. Best result is Karl Williams on the cards; Marcin Tybura beat him, and Austen Lane, Alvin Hines and Mário Pinto round out the ledger
UFC sample5-6 across eleven bouts since October 20193-2 across five bouts since April 2024
Recent ranked / elite touches (last 5)0 elite · 2 veteran tier0 elite · 1 veteran tier
Form-window difficulty edge: Fighter A (7 vs 6 tier points in listed bouts).
Last three opponentsGokhan Saricam, Vinicius Moreira, Aleksa CamurMário Pinto, Alvin Hines, Marcin Tybura
  • Gokhan Saricam (style proxy — no shared opponents exist): A rangy UFC debutant failed on every takedown attempt and won anyway, purely by out-boxing Boser and landing the straight right down the pipe. It is the punch Diniz throws best, and he throws it from four inches further out.
  • Marcin Tybura & Mário Pinto (style proxy): Both Diniz defeats started with his back hitting the canvas — Tybura's elbows after 7:14 of control, Pinto's mount after 7:28. Boser has attempted zero takedowns in twenty-four logged UFC rounds, so the only proven way to beat Diniz is unavailable to him.
03

The Numbers

Composites, division ranks and round-by-round evidence

Composite scores summarize selected statistics on a 0–100 scale. They are not win probabilities. Compare the underlying metrics, opponent quality and sample flags before interpreting a score difference as a matchup advantage.

Striking

SLpM 25% · StrAcc 30% · StrDef 30% · SApM 15%

0
Tanner
0
Jhonatasmall sample

The raw formula returns Boser ~58 and Diniz ~54: the Canadian is above the divisional 4.54–4.79 SLpM band, at-or-above the 53% accuracy mark, clearly above the 50.8–51.9% defence mark, and his 3.00 absorbed is a full point under divisional average. But the formula contains no power term, and this is heavyweight. Four inches of reach, a 78% career knockout rate, an official 0.75 knockdown average (11th of 36 divisionally) and an ACB heavyweight kickboxing title are worth an explicit +8 leverage adjustment, applied openly rather than hidden in the weights. Diniz's separating asset is the one thing the formula literally cannot see.

Grappling

TD/15 25% · TDAcc 25% · TDDef 30% · Sub/15 20%

0
Tanner
0
Jhonatasmall sample

The two published lines are identical to the decimal — TD/15 0.00, TDAcc 0%, TDDef 70%, Sub/15 0.00 — so the formula returns ~20 for both and they are separated on tape. Boser edges it because he has never been submitted in 34 professional fights and has been finished from the bottom exactly once, surviving 4:14 of Latifi's control and 8:01 of Nascimento's. Diniz has spent 38.9% of his Octagon career underneath somebody and both of his losses ended there. This is the emptiest grappling column we have published, and the emptiness is the analysis.

Technical

(Striking + Grappling) / 2

0
Tanner
0.0
Jhonata

Both scores are depressed by roughly fifteen points against a normal heavyweight purely because the grappling column is empty on both sides. Read them relative to each other, not absolutely: the two men are technically level, with Boser ahead on defensive rates and volume and Diniz ahead on leverage and reach.

Cardio

Fight time · pace · R3/R1 output · champ rounds

0
Tanner
0
Jhonatasmall sample

Boser owns eight career decision wins, six UFC bouts to the final horn, an average fight time of 10:52, and a statistical record momentum label of Strong Finisher with Round-3 output at 132% of Round 1. He has completed fifteen minutes against Gane, Arlovski, Latifi, Nascimento, Camur and Spitz. Diniz has two UFC bouts past Round 2 and twelve logged rounds in total, and his absorption climbs 11.2 → 17.2 → 25.0 significant strikes per round. Not a bad engine — a thinly-proven one. This ten-point gap is precisely why the line sits at 57/43 rather than 65/35.

Overall

(Technical + Cardio) / 2

0.0
Tanner
0.0
Jhonata

Read this honestly: our composite framework rates Boser higher and we are still picking Diniz. That is not an inconsistency to paper over, it is the finding. The framework scores rates, defence and duration, and Boser wins all three. It contains no term for one-punch leverage, no term for reach, and no term for a chin that cracked six months ago. At 155 lb those omissions are rounding errors. At heavyweight they are the fight.

MetricTannerJhonata
Avg Fight Time10:529:56
Pace TierAbove average — 4.82 SLpM, engagement score 30.0Low Output — 3.89 SLpM, engagement score 20.0small sample
R3/R1 Output132% (22.5 vs 17.2 sig landed)219% (25.0 vs 11.4) — two rounds onlysmall sample
Slow Start %Measured opener — 17.2 landed at 50.9%, 41.3% of it to the legsVery low — 11.4 landed at 54.8%, his quietest round by far
Champ RoundsN/A — 3-round boutN/A — 3-round bout

Archetype Base Rate

Technical Striker / Counter Striker 48.7%51.3% Muay Thai Fighter

526-fight archetype sample · The archetype_matchups row gives the Muay Thai Fighter a 51.3% win rate against the Technical Striker across 526 logged fights — a real edge, and a tiny one. It is not what moves this line. The reach gap, the 78% knockout rate and the six-month-old Saricam knockdown are.

Tanner BoserJhonata Diniz

Heavyweight

· 36 fighters
StatTannerTanner rankDiv avgJhonata rankJhonata
SLpM4.82—~4.54–4.79
16/36small sample
3.89
Str Acc54%—~53%—56%
Str Def58%—~50.8–51.9%
9/36small sample
57%
SApM3.00—~3.89–4.20—3.62
KD Avg0.25—~0.86–1.14
11/36small sample
0.75
Damage Ratio1.61—~1.17—1.07
TD/150.00 (0 attempts, 24 rds)—~1.60–1.97—0.00 (0 attempts, 12 rds)
TD Def70% official · 63% by fight log (7 of 19)—~71%—70% official · 69% by fight log (8 of 26)
Sub/150.00—~0.36–0.45—0.00
Control Conceded17:09 of 109:53 — 15.6%———21:55 of 56:22 — 38.9%
Avg Fight Time10:52———9:56
Statistical Verdict
Every rate, duration and defensive marker belongs to Boser. Every physical, leverage and finishing-rate marker belongs to Diniz. The grappling column is a mutual zero, which removes the only mechanism that has ever beaten either man — Diniz has spent nearly two-fifths of his Octagon career underneath somebody and Boser has never once tried to be that somebody. The honest one-sentence read: Boser wins the fight that is still a fight in minute twelve; Diniz wins the fight that ends with one clean right hand from four inches further away than Boser is used to. With the Saricam knockdown six months old and no wrestling available to Boser as a pressure valve, we give the shorter fight the higher probability — but only just.

Significant Strikes Landed per Round

Control Time per Round (sec)

Tanner Boser

  • The Round-2 spike is the most decisive number in either table: 28.0 significant strikes landed at 58.3% accuracy, and it is where all three of his UFC finishes happened.
  • It is also the round where opponents hit him least — 39.4% accuracy against him in Round 2, against 41.6% in Round 1 and 44.1% in Round 3.
  • His targeting is a leg-kick story that never really stops: 41.3% of Round-1 output to the legs, and back up to 35.6% in Round 3 as opponents' legs go.
  • Zero takedowns attempted in all twenty-four logged rounds, and 15.6% of his UFC cage time spent under someone else's control.

Jhonata Diniz

  • His aggregate accuracy climbs every round — 54.8%, then 59.2%, then 63.3% — so he gets sharper as the read develops rather than sloppier.
  • So does what he absorbs: 11.2, then 17.2, then 25.0 significant strikes taken per round. He gets hit more the longer he stands there.
  • Round 2 carries his only Octagon knockdown (Austen Lane, April 2024) and a 0.20 knockdown rate; the Round-3 sample is two rounds deep and nothing more.
  • Head targeting rises from 70.2% to 84.0% by Round 3. Body work is almost nonexistent — 1.8% of Round-1 output.
Critical Insight
Boser's Round-2 engine and Diniz's rising accuracy curve are the two clocks in this fight, and they run in opposite directions. Against a man who throws 45–48 significant strikes per round from Round 2 onward, Diniz's absorption curve of 11.2 → 17.2 → 25.0 is the underdog's entire case. Against a man whose knockdown rate peaks in Round 2 and whose only UFC finish arrived there, Boser's kill window is also his danger window. Diniz's win equity is front-and-middle-loaded; Boser's is middle-and-back-loaded. The cleanest summary of the fight: Boser is favoured to win minutes 6 through 15, and Diniz is favoured to make sure minutes 6 through 15 never get scored.

Strike targeting (available rounds)

Tanner

Head
48%
Body
20%
Legs
32%

Jhonata

Head
75%
Body
5%
Legs
20%

Head hunting vs body work vs leg attack — the shape of the damage.

Striking range — distance, clinch and ground

TannerJhonata
86%Distance94%
9%Clinch3%
5%Ground3%

Approximate share of significant strikes by range in available rounds, weighted by strike volume. Incomplete splits are excluded. Debutants / fighters without Octagon samples show as N/A.

04

The Story of the Fight

Advantages, worst cases, gameplans — and the patterns underneath

Where the fight lives

Who owns each phase — and by how much
Open SpaceJhonata owns it

+4" reach and +2" height with both men at range — Boser 86% standing, Diniz 94% — so the jab exchange is his before anyone moves

Pocket / ExchangesJhonata owns it

Boser out-throws him 48 to 34 per round, but every Boser knockdown absorbed has come on a straight line down the middle at mid-range

ClinchTanner owns it

Boser's clinch share is 9% of career output and doubles to 10.7% in Round 2, against Diniz's 3% — the one place four inches stop mattering

GroundEven

Zero takedowns attempted in 38 logged rounds; Diniz's 38.9% control conceded is the biggest weakness in the fight and Boser owns no tool that reaches it

Path to Victory

Tanner Boser

Fifteen minutes. Eight career decision wins, six UFC third rounds, an average fight time of 10:52 and a Round-2 engine averaging 28 significant strikes landed at 58% — if this fight is still upright and competitive in minute eleven, it is his.

Why they win
01
Volume and workrate

4.82 significant strikes per minute against 3.89, and a Round-2 average of 28.0 landed at 58.3% accuracy against a fighter the statistical record labels Low Output with an engagement score of 20.0 to Boser's 30.0.

02
The leg-kick tax

32% career leg targeting, 41.3% of Round-1 output, and a 43-inch leg reach two inches longer than Diniz's. Against a 255 lb head-hunter who puts only 19% of his own output on legs, this is the highest-leverage tool in the fight for shortening a reach advantage.

03
Defensive rates

3.00 absorbed per minute and 58% striking defence, both clearly better than divisional average and both better than Diniz's 3.62 and 57%. He has historically been very hard to hit cleanly at heavyweight.

04
Duration and decision identity

Eight career decision wins, six UFC bouts to the horn, an average fight time of 10:52 and Round-3 output at 132% of Round 1. Diniz has never fought past fifteen minutes and has only two third rounds on record.

05
Level of competition

Gane, Arlovski, Latifi, Saint Preux, Nascimento, Cutelaba. Diniz's best Octagon win is Karl Williams by 29-28. Nothing on the Brazilian's ledger has the timing Boser has already survived fifteen minutes against.

06
Rogers Place

Bonnyville-born, Edmonton-based, and finally fighting in the building whose 2019 card he was pulled from the day before. The crowd is a real early-round variable for a fighter who lives on activity scoring.

The gameplan
  1. 1
    Open on the legs, not the head

    His Round-1 profile already says so — 41.3% of his opening-round output goes low. Buy the first round with kicks that do not require entering Diniz's straight-right lane.

  2. 2
    Circle to the lead side and never square up

    Every Diniz knockdown and knockout has come on a straight line down the middle. The angle is the whole defence.

  3. 3
    Turn it into a Round 2 fight

    His engine is a documented 28.0-landed round at 58.3% with 39.4% opponent accuracy against him. Get there intact and the arithmetic flips.

  4. 4
    Attack the body

    Diniz has absorbed almost nothing there — body work is 1.8% of his own Round-1 output and his defensive profile is head-heavy. Boser's body share is 19–21% and it compounds against heavy men.

  5. 5
    Bank rounds, do not hunt the highlight

    Eight decision wins and a 0.25 knockdown average. A cautious 30-27 is a far better use of this skill set than a swing for a finish he statistically does not own.

  6. 6
    Contingency — if the kicks are being checked

    If he is losing the range battle he must force the clinch and dirty box. His clinch share doubles in Round 2, to 10.7%, and it is the only place Diniz's four inches stop mattering. Half-measures at mid-range are exactly how the Saricam fight ended.

Path to Victory

Jhonata Diniz

One straight right down the middle, thrown from four inches further out than Boser is used to, inside the first ten minutes — the punch Gokhan Saricam found six months ago.

Why they win
01
Four inches of reach and two of height

At heavyweight, with both men fighting at distance — Boser 86% standing, Diniz 94% — the jab exchange belongs to Diniz before either man moves.

02
One-shot leverage

78% career knockout rate, seven of nine wins by knockout, six of those in the first round, plus an ACB heavyweight kickboxing title and a 2021 Tatneft Cup +80 kg crown. Boser's knockdown average is 0.25; Diniz's official figure is 0.75.

03
The Saricam blueprint is six months old

A straight right down the middle put Boser down for the first time in his UFC career, on April 18, 2026. Diniz's entire game is the straight right down the middle, thrown from four inches further out.

04
Accuracy that climbs

54.8% in Round 1, 59.2% in Round 2, 63.3% in Round 3. He gets sharper, not sloppier, as the read develops — and both of his Octagon decision wins were built on that cleanliness.

05
Mass

Roughly eleven pounds heavier at the last weigh-ins, against a man who spent 2022–23 making the 205 lb light-heavyweight limit and has been an undersized heavyweight for his entire career.

06
He is not vulnerable to anything Boser owns

No takedown to fear, no submission to fear, and he has never been dropped or finished standing in the Octagon. Both of his stoppage losses required a wrestler, and Boser has attempted zero takedowns in twenty-four logged rounds.

The gameplan
  1. 1
    Fight behind the jab and take the range for free

    With four extra inches he does not need to be busy — he needs to be first. His 3.89 SLpM is a design choice, not a fitness problem.

  2. 2
    Bait the entry, land the straight right

    Boser must close distance to land. Every step in is the shot Diniz has trained for twenty years, and the shot that ended Boser's night in Winnipeg.

  3. 3
    Check and answer the leg kicks

    The one thing that could unmake his frame. Punish each low kick with a right hand over the top rather than absorbing them for free.

  4. 4
    Do not chase Round 3

    His finish equity is concentrated in the first ten minutes; his cardio and his absorption both degrade after that, from 11.2 taken per round to 25.0.

  5. 5
    Stay off the fence and off the ground

    Every loss he owns started with his back going somewhere it should not have. Even against a man with zero takedown attempts, a scramble is the only way this goes wrong for him.

  6. 6
    Contingency — if the legs are compromised by Round 2

    He must stop retreating in straight lines and commit to a single overhand sequence per exchange. A patient sniper with a dead lead leg loses a decision he cannot afford at 3-3 in the Octagon.

Danger Zone

How Tanner Boser loses

  • Saricam 2.0 in front of his home crowd — he walks onto a straight right inside the first six minutes, goes down, and is finished on the ground before Rogers Place has finished its first roar.

  • Reach starvation: he spends three rounds a half-step outside his own range and inside Diniz's, lands thirty total significant strikes and loses 29-28 across the board the way Karl Williams did not quite manage to.

  • Adrenaline dump — he burns the first ninety seconds on hometown energy, throws a haymaker instead of a leg kick, and hands a counter-puncher the exact geometry he wants.

Danger Zone

How Jhonata Diniz loses

  • The legs go by minute eight. Boser stacks calf and thigh kicks from a 43-inch leg reach, Diniz's base erodes, and the sniper cannot plant to fire.

  • Volume drowning: Boser throws 48 significant strikes in Round 2 and 45 in Round 3, Diniz's absorption curve of 11.2 → 17.2 → 25.0 plays out exactly as logged, and he loses two rounds without ever being hurt.

  • Cut and stopped again. He has already been waved off once on a doctor's stoppage, Boser's clinch elbow rate is a live secondary tool, and Diniz has never proved he closes a cut and keeps working.

Both men arrive with a loaded gun the other cannot fire

The Empty Grappling Column

Across thirty-eight logged UFC rounds between these two there is not one takedown attempt. Boser is 0-for-0 in twenty-four rounds, Diniz 0-for-0 in twelve. That is not a small-sample artifact, it is a shared decade-long stylistic identity, and the consequence is specific: Ion Cutelaba, Marcin Tybura and Mário Pinto all beat their man the same way, and none of them are in this cage. Diniz has spent 38.9% of his Octagon career under control and has been finished from the bottom twice — the single largest exploitable weakness in the fight, and it is completely invisible to Tanner Boser's toolkit. Symmetrically, Boser's own worst tape, 30-of-40 with 16-for-16 on the ground in 125 seconds against Cutelaba, is unreachable for Diniz.

0
takedowns attempted across 38 logged UFC rounds
The most load-bearing data point on the page

The Saricam Shadow

On April 18, 2026 in Winnipeg, a UFC debutant named Gokhan Saricam did something eleven previous Octagon opponents had not: he knocked Tanner Boser down with a straight right and finished him on the ground at 4:43 of Round 2. Before that night Boser's UFC log showed zero knockdowns absorbed in ten fights — he had gone the distance with Ciryl Gane, Andrei Arlovski and Ilir Latifi without ever touching the canvas from a punch. The detail that matters most: Saricam failed on all of his takedown attempts and won anyway, purely by out-boxing him down the pipe. That is not a wrestling loss dressed as a knockout. It is a clean striking loss, six months old, against a man with less pedigree and less reach than Diniz — and it is why the fighter with the better composite score is the underdog here.

4:43
Round 2, Apr 18 2026 — Boser's first knockdown in eleven Octagon fights
Rate versus career disconnect

Diniz's Knockdown Number Does Not Survive the Round Log

UFC.com publishes Diniz at 0.75 knockdowns per fifteen minutes, which would imply roughly two and a half knockdowns over his Octagon career. Our round-by-round log records exactly one — Austen Lane, Round 2, April 2024 — across twelve logged rounds, which computes to about 0.27 per fifteen minutes, essentially identical to Boser's 0.25. We publish the official figure because it is the official figure, but we do not model Diniz as a 0.75-knockdown heavyweight. His finishing case rests on the six regional first-round knockouts and the kickboxing résumé, and six of those seven knockouts came against Spartacus, Metanoia and Imortal FC opposition. This is the strongest single argument for keeping the line at 57 rather than pushing it to 62.

Why the underdog is not lower than 43%

Strength of Schedule, Qualitatively

Boser has shared the cage with a future interim heavyweight champion in Ciryl Gane, a former heavyweight champion in Andrei Arlovski, a durable divisional gatekeeper in Ilir Latifi, a long-tenured light-heavyweight contender in Ovince Saint Preux, and two current roster heavyweights in Rodrigo Nascimento and Ion Cutelaba. He lost most of those fights, but he completed fifteen minutes in four of them. Diniz's five-fight Octagon résumé tops out at Marcin Tybura, who beat him, and Karl Williams, whom he edged on two of three cards. Nothing on Diniz's ledger has yet asked him a question Boser has not already been asked several times.

Same age, incomparable mileage

Two Thirty-Five-Year-Olds, Two Different Clocks

Both men turn the same age in 2026 and neither is young for a heavyweight, but the mileage is not comparable. Boser has 34 professional fights, twenty-four logged UFC rounds and two stoppage losses in three years. Diniz has 11 professional fights, twelve logged UFC rounds and a body that has taken far less cumulative damage — offset by a twelve-month layoff and a career that has never demanded he be sharp in minute fourteen. Boser's clock is running out of durability; Diniz's clock has barely started but has never been wound past ten minutes. In a three-round fight, the second problem is the smaller one.

The Five-Round Clock

Tanner Boser danger windowJhonata Diniz danger windowNeutral / contested
R1 · 0:00–5:00Maximum danger, minimum output

A genuine paradox. Diniz's Round-1 average is only 11.4 significant strikes landed at 54.8%, but six of his seven career knockouts came in a first round, and Boser has now been finished in an opening round once and dropped in a second. Boser should be ahead on the cards after five minutes and simultaneously at his highest per-second risk. Estimated finish equity: ~19%.

Critical Insight
Diniz's win equity is front-and-middle-loaded — roughly 28 of his 37 knockout points sit in Rounds 1 and 2. Boser's is middle-and-back-loaded: about 17 of his 21 knockout points sit in Rounds 2 and 3, plus all 21 of his decision points. Boser is favoured to win minutes 6 through 15; Diniz is favoured to make sure minutes 6 through 15 never get scored.

Finish Threat by Round

Share of each fighter's wins that end in each round — early finishers spike left, grinders rise right.

05

The Verdict

One hundred simulated fights, the betting market, and our conviction

If you only read 3 things
1

Across thirty-eight logged UFC rounds these two heavyweights have attempted zero takedowns between them — and every stoppage loss either man owns came off a takedown. Each fighter's fatal flaw is exploitable only by the one skill neither possesses.

2

Diniz brings four inches of reach, a 78% career knockout rate and an ACB kickboxing title. Boser brings 4.82 SLpM to 3.89, 3.00 absorbed to 3.62, eight decision wins to two, and a home crowd at Rogers Place.

3

Model: Jhonata Diniz 57% / Tanner Boser 43%, conviction 5/10 — and our own composite framework rates Boser higher, 51.5 to 46.25. We are overriding it on power and reach, and saying so out loud.

Model outcomes per 100 fights

Each square represents one percentage point of the model distribution, not an observed fight. This visualization does not measure model accuracy or reduce uncertainty in the inputs.

Boser Decision — 21%Boser Submission — 1%Boser KO/TKO — 21%Diniz KO/TKO — 37%Diniz Decision — 20%Diniz Submission — 0%

Each square = 1 simulated fight. Tanner Boser gold · Jhonata Diniz orange · full color = decision, 70% = submission, 45% = KO/TKO.

The Saricam template

The single highest driver in the model. A straight right down the middle on a Boser who has now been dropped standing once, at 34, by a debutant with less reach and less pedigree than Diniz. It is what makes Diniz's 37 knockout points the largest bucket on the page.

Reach and mass at distance

+4 inches, +2 inches and roughly +11 lb to Diniz, with both men fighting at range — 86% standing for Boser, 94% for Diniz. There is no phase of this fight where the length gap gets hidden, because neither man goes looking for one.

Boser's Round-2 engine against a Low Output opponent

28.0 significant strikes landed at 58.3% in his peak round, against a fighter throwing 34 per round with a statistical record engagement score of 20.0. It is why Boser's combined decision-plus-TKO equity is 42 points rather than 30.

The absorption curve versus the leg-kick tax

Diniz takes 11.2, then 17.2, then 25.0 significant strikes per round as fights lengthen, and puts only 19% of his own output on legs. Boser puts 32% there from a 43-inch leg reach. That collision is the whole of the underdog's late-fight case.

Decision reliability, and the mutual grappling vacuum

Eight career decision wins and six UFC third rounds against two and two, in a fight where zero takedown attempts across 38 rounds removes both men's proven losing condition. Whoever cannot be finished wins on the cards, and that is the older man.

Fight Scripts

0%
of simulations

The Saricam Sequel

Boser steps into the lane, and from four inches further out than Gokhan Saricam needed, the straight right lands. Most likely in Round 1 or Round 2, most likely finished on the ground afterwards — the single largest bucket on the page and the one that carries the pick.

Scripted outcomes for Tanner Boser vs Jhonata Diniz — how each version of this fight unfolds.

Tanner Boser win probability
0%
21%
21%
KO/TKODECSUB

  • Higher than his 0.25 knockdown average suggests, because Diniz's stoppage history is cut-and-accumulation rather than chin failure: a doctor's stoppage on an eyebrow and a mount-position pounding. Boser's volume, body work and clinch elbows are a real route to a Round-3 accumulation TKO against a man absorbing 25 strikes per round by then.

  • His primary path. Eight career decision wins, six UFC third rounds, an average fight time of 10:52, and Round-3 output at 132% of Round 1. If this fight reaches minute eleven upright and competitive, Boser is the favourite from there.

  • One point, and not a rounding choice. He has zero UFC submission attempts and his two career submission wins are regional-era trivia. This covers a standing-choke fluke off a rare scramble and nothing more.

Jhonata Diniz win probability
0%
37%
20%
KO/TKODECSUB

  • The largest single bucket on the page and the one that carries the pick. Built on the four-inch reach gap, a 78% career knockout rate, a kickboxing title pedigree, and the fact that Boser was knocked down and finished standing six months ago for the first time in his UFC life.

  • Deliberately modest. He is a Low Output fighter with two 29-28 decision wins, a rising absorption curve and a twelve-month layoff, facing a man who out-throws him by roughly fourteen significant attempts per round.

  • Zero. He has no career submission wins, no UFC submission attempts, and no UFC takedown from which to hunt one. There is no submission branch on this side of the page and we will not manufacture one.

Projected Scorecards

How the model scores each round
R1
Tanner
R2
Tanner
R3
Jhonata
29-28 Boser
He banks the first two on activity and Diniz snipes the third
The most likely card if the fight reaches them
29-28 Diniz
Cleaner work at a range Boser cannot reach
Both of Diniz's Octagon decision wins were exactly this score
30-27 Boser
The leg-kick sweep — 41.3% of R1 output low, back to 35.6% by R3
His ceiling on the cards, and the shape of the Camur win

Model and price

Tanner Boser

Insufficient price data
Model win probability
43%
Fair decimal odds
2.33
Reference quote—
Estimated EV
—
Edge vs no-vig market
—

Jhonata Diniz

Insufficient price data
Model win probability
57%
Fair decimal odds
1.75
Reference quote—
Estimated EV
—
Edge vs no-vig market
—

EV uses the displayed price: probability × decimal odds − 1. Edge is a percentage-point difference from a proportionally de-vigged, same-book pair. A dash means that comparison is unavailable.

Price freshness & calculation notes

Quotes older than 48 hours are marked outdated. EV at an old or undated price is a historical calculation, not a current opportunity. Date-only snapshots have no verified capture time.

Fair odds are the break-even price under this estimate, not a recommended entry price. Model uncertainty can erase a small edge.

What price would change the calculation? · Tanner Boser

Change the assumptions to see how the required price moves. This does not update the published model or recommend an entry price.

Required decimal price: 2.33 or higher. At the exact unrounded break-even price, estimated EV is zero.

What price would change the calculation? · Jhonata Diniz

Change the assumptions to see how the required price moves. This does not update the published model or recommend an entry price.

Required decimal price: 1.76 or higher. At the exact unrounded break-even price, estimated EV is zero.

Full prop table (0)Expand for odds, model %, implied % and analyst verdict per prop

No prop prices recorded in this analysis.

Original analyst price notes

These notes describe the original analysis and may refer to older prices.

Every figure here is an MMA Analytics model percentage, not a book's price. The cleanest structural read on the board is that the fight does not go the distance — our model puts that at 59% against 41% for the full fifteen minutes, on two heavyweights with no takedown offence, no clinch stalling, a combined nineteen knockout wins, and both coming off Round-2 stoppages in their most recent outings. By round, the model splits it roughly 19% in Round 1, 22% in Round 2 (the highest single-round finish cluster) and 18% in Round 3. Second-best, if a market ever posts it: Boser by decision at plus money. Our 21% on that bucket is built on eight career decision wins, six UFC third rounds and a 132% Round-3 output ratio, all of it badly underweighted against a 3-2 opponent who has fought two third rounds in his life. The bet we would actively avoid is anything by submission — the model prices either fighter by submission at roughly 1%, on zero career submission wins for Diniz, zero UFC submission attempts for either man, and zero takedown attempts across thirty-eight logged rounds.

Conviction
0
5/10

Editorial confidence in the evidence, not a win probability or a calibrated confidence interval.

A real but honest lean. We are picking the man our own composite framework rates lower, on the strength of a reach gap, a knockout rate and one six-month-old knockdown — and we are saying so out loud. Two thirty-five-year-olds coming off stoppage losses, one with the better rates and the home cage, one with the bigger frame and the bigger punch, in a division where a single clean shot outweighs fourteen minutes of arithmetic. That is a five, not a seven. Lean: Jhonata Diniz.

What backs the lean

  • +4" reach, +2" height and roughly +11 lb at heavyweight, with both men committed to fighting at distance.

  • 78% career knockout rate, seven of nine wins by KO, and a genuine ACB heavyweight kickboxing championship plus a 2021 Tatneft Cup crown.

  • The Saricam knockdown is six months old — Boser's UFC chin held for ten fights and then broke, at 34, to precisely the punch Diniz throws best.

  • Boser cannot wrestle, which closes the only method that has ever beaten Diniz; the 38.9% control-conceded figure is unexploitable here.

  • Rising accuracy by round — 54.8%, 59.2%, 63.3% — so he does not get sloppier when the read develops.

  • Divisional rank support where we have it: 9th of 36 in strike defence, 11th of 36 in knockdown average.

What limits it

  • Boser wins the rate card outright: 4.82 SLpM against 3.89, 3.00 absorbed against 3.62, 58% striking defence against 57%.

  • The leg-kick tax — 32% career leg targeting from a 43-inch leg reach, two inches longer than Diniz's, aimed at the exact asset a 255 lb sniper needs most.

  • Eight career decision wins, six UFC third rounds, an average fight time of 10:52 and Round-3 output at 132% of Round 1, against Diniz's two and two.

  • Level of competition: Gane, Arlovski, Latifi, Saint Preux. Diniz's best win is Karl Williams by 29-28.

  • Diniz's absorption curve rises to 25.0 significant strikes per round in Round 3 and he has never fought past fifteen minutes.

  • A twelve-month layoff for Diniz against six for Boser, and Rogers Place — the building whose 2019 card cancelled Boser's hometown debut the day before it happened.

  • Our own overall rating has Boser ahead, 51.5 to 46.25. We are overriding it on power and reach; readers who weight composites over leverage should treat this as a coin flip.

Final Assessment

In roughly 57 of 100 simulations, Jhonata Diniz's four extra inches and one clean right hand end the night early — most often as a Round-1 or Round-2 knockout as Boser steps into the lane Gokhan Saricam found six months ago (37%), and otherwise as a narrow, 29-28-flavoured decision built on cleaner work at a range Boser cannot comfortably reach (20%). There is no submission branch: Diniz has never recorded one, never attempted one in the Octagon, and has never scored a UFC takedown from which to hunt one.

In the other 43, Tanner "The Bulldozer" Boser buys the fifteen minutes he has spent a decade learning how to buy — banking rounds behind a 43-inch leg reach and a Round-2 engine that averages 28 significant strikes landed at 58% accuracy against a Low Output opponent, and taking a decision the Edmonton crowd will hear coming from the second round (21%). In another 21, that accumulation becomes a stoppage: Diniz's absorption climbs to 25 strikes per round by Round 3, his lead leg is gone, he has already been waved off once on a cut, and Boser's clinch elbows and body work finish a heavyweight who has never been asked to survive minute thirteen. The final 1 is a scramble no one on this page can model.

The data gives Diniz the reach, the mass, the knockout rate and the freshest exploitable evidence in the fight; it gives Boser the volume, the defence, the engine, the level of competition and the building. Because neither man wrestles, the only proven way to beat either of them is off the table — which turns this into fifteen minutes of pure kickboxing between a sniper and an accumulator. On October 17 in Edmonton, we take the sniper, narrowly and without comfort — and we will not fade the Bulldozer's decision at plus money in the one arena that already owes him a night.

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