UFC Fight Night: Rosas Jr. vs. Barcelos

UFC Fight Night: Rosas Jr. vs. Barcelos Poster - UFC Fight Analytics
Saturday, September 26, 2026
Las Vegas, Nevada, United States
Meta APEX
⚡ Upcoming Event8 Fights
Main Card: Paramount+
Prelims: Paramount+
Start Time: 5:00 PM ET
Start Time by Timezone
Times are estimated; prelims start roughly two hours earlier. Subject to change.
ET
Eastern US/Canada
Main Card
5:00 PM
PT
Pacific US/Canada (Local)
Main Card
2:00 PM
BST
United Kingdom / Ireland
Main Card
10:00 PM
CET
Central Europe
Main Card
11:00 PM
AE
Abu Dhabi, UAE
Main Card
1:00 AM (Sun)
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APEX Bantamweight: Prodigy Against Gatekeeper

UFC Fight Night: Rosas Jr. vs. Barcelos — Meta APEX, Las Vegas — September 26, 2026

This APEX card is a classic UFC timeline test. Raul Rosas Jr. (12-1) has spent his entire adult life in the Octagon — he debuted at 17 and arrives here with seven UFC bouts already behind him — and now gets five rounds against Raoni Barcelos (22-5), a 19-fight UFC veteran whose sambo-and-boxing base has been the division's measuring stick for years. Youth and grappling volume against experience and craft, with the winner pushing toward the bantamweight top ten.

The co-main is a women's bantamweight rankings collision: Norma Dumont (13-3) versus Ailín Pérez (13-2), two fighters riding strong runs with a top-five spot on the line. The Paramount+ depth runs long: Montel Jackson vs. Ricky Simón, Yazmin Jauregui vs. Vanessa Demopoulos, Rodolfo Bellato vs. Christian Edwards, Elves Brener vs. Josiah Harrell, Mickey Gall vs. Sedriques Dumas, and John Castañeda vs. Alatengheili. Every bout below includes BetOnline odds and a full breakdown; model probabilities are still pending for this card.

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What is UFC Fight Night: Rosas Jr. vs. Barcelos?

It is a UFC APEX card on September 26, 2026, at the Meta APEX in Las Vegas, Nevada. The main event is a five-round bantamweight bout between Raul Rosas Jr. (12-1) and Raoni Barcelos (22-5), with Norma Dumont vs. Ailín Pérez in the co-main. Main card starts at 5:00 PM ET on Paramount+.

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What is the matchup between Rosas Jr. and Barcelos?

It is a generational bantamweight test: Rosas Jr.'s chain wrestling, top pressure and submission hunting against Barcelos' sambo base, counter boxing and 19 bouts of UFC-level scar tissue. Five rounds is the real variable — Rosas Jr. has never been past the third, while Barcelos has repeatedly proven he can drag prospects into deep water. Model probabilities for this card are still pending and will publish once full UFC rate statistics are in. Every fight below includes BetOnline odds and a full breakdown.

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How to watch this card and what time does it start?

UFC Fight Night: Rosas Jr. vs. Barcelos takes place Saturday, September 26, 2026. Main card at 5:00 PM ET (2:00 PM PT) on Paramount+. Prelims start roughly two hours earlier, also on Paramount+. The Meta APEX in Las Vegas hosts the action.

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Are the main event and co-main confirmed?

Yes. Raul Rosas Jr. vs. Raoni Barcelos headlines over five rounds at bantamweight, and Norma Dumont vs. Ailín Pérez serves as the women's bantamweight co-main event. Card order below reflects the announced bout order and remains subject to change.

Main Event — Bantamweight

Rosas Jr. vs. Barcelos

Raul Rosas Jr. (12-1) meets Raoni Barcelos (22-5) over five rounds — the roster's youngest riser against a 19-fight UFC veteran and long-time gatekeeper.

Co-Main — Women's Bantamweight

Dumont vs. Pérez

Norma Dumont (13-3) faces Ailín Pérez (13-2) with a top-five women's bantamweight spot on the line.

Main Card — Bantamweight

Jackson vs. Simón

Montel Jackson (15-4) takes on Ricky Simón (22-7-1) at 135 — southpaw length and finishing power against a durable wrestling base.

Prelim Spotlight

Jauregui vs. Demopoulos & Gall vs. Dumas

Yazmin Jauregui (11-2) meets Vanessa Demopoulos (11-8) at women's strawweight, while Mickey Gall (7-7) faces Sedriques Dumas (10-5) at welterweight.

📊Analysis Reliability Framework

Our analytical model considers UFC experience as one of several factors for optimal predictions. While we can analyze any fight, fighters with 5+ UFC bouts provide more comprehensive data for our statistical modeling. This doesn't diminish the quality of our analysis for newer fighters - it's simply one criterion we factor into our confidence assessments.

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High Risk (**)

<3 UFC Bouts

Limited UFC data available. Analysis relies more heavily on external sources and pre-UFC performance patterns.

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Moderate Risk (*)

3-4 UFC Bouts

Meaningful UFC sample size with good analytical foundation. Reliable insights with solid confidence levels.

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Optimal Data

5+ UFC Bouts

Comprehensive statistical foundation enabling highest confidence analysis and predictive accuracy.

Note: All fights receive thorough analysis regardless of UFC experience levels. This framework simply helps calibrate confidence in our predictions.

UFC Fight Night: Rosas Jr. vs. Barcelos Fights, Analytics & Predictions

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We display the best available odds for each fighter to maximize value. Preference is given to BetOnline when available; otherwise, we select the highest‑value line and show the sportsbook and implied probability (I.P %).

🏆 Main Event🟢🔒 Full analysis coming soon
Raul Rosas Jr.

Raul Rosas Jr.

“El Niño Problema”

12-1-0

Bantamweight
5 Rounds(Championship)

ML Model

Coming Soon

Market Odds

……
Raoni Barcelos

Raoni Barcelos

22-5-0

⭐ Co-Main🟢🔒 Full analysis coming soon
Norma Dumont

Norma Dumont

“The Immortal”

13-3-0

Women's Bantamweight
3 Rounds

ML Model

Coming Soon

Market Odds

……
Ailín Pérez

Ailín Pérez

“Fiona”

13-2-0

🟢🔒 Full analysis coming soon
Montel Jackson

Montel Jackson

“Quik”

15-4-0

Bantamweight
3 Rounds

ML Model

Coming Soon

Market Odds

……
Ricky Simón

Ricky Simón

22-7-1

🟢🔒 Full analysis coming soon
Yazmin Jauregui

Yazmin Jauregui

11-2-0

Women's Strawweight
3 Rounds

ML Model

Coming Soon

Market Odds

……
Vanessa Demopoulos

Vanessa Demopoulos

“Lil' Monster”

11-8-0

🔴🔒 Full analysis coming soon
Rodolfo Bellato

Rodolfo Bellato

“Trator”

13-3-1

Light Heavyweight
3 Rounds

ML Model

Coming Soon

Market Odds

……
Christian Edwards

Christian Edwards

“Pain”

8-5-0

🔴🔒 Full analysis coming soon
Elves Brener

Elves Brener

16-6-0

Welterweight
3 Rounds

ML Model

Coming Soon

Market Odds

……
Josiah Harrell

Josiah Harrell

“The Muscle Hamster”

11-1-0

🟢🔒 Full analysis coming soon
Mickey Gall

Mickey Gall

7-7-0

Welterweight
3 Rounds

ML Model

Coming Soon

Market Odds

……
Sedriques Dumas

Sedriques Dumas

“The Reaper”

10-5-0

🟢🔒 Full analysis coming soon
John Castañeda

John Castañeda

“Sexi Mexi”

21-8-1

Bantamweight
3 Rounds

ML Model

Coming Soon

Market Odds

……
Alatengheili

Alatengheili

“The Mongolian Knight”

17-10-2

The Meta APEX in Las Vegas uses the smaller 25-foot cage, which historically compresses distance and favours pressure fighters over out-fighters.

Model Probabilities vs Market Odds Summary

FightFighter AModel Prob AMarket Odds AImplied Prob AFighter BModel Prob BMarket Odds BImplied Prob B
Jr. vs Barcelos🟢Raul Rosas Jr.UpcomingN/A—Raoni BarcelosUpcomingN/A—
Dumont vs Pérez🟢Norma DumontUpcomingN/A—Ailín PérezUpcomingN/A—
Jackson vs Simón🟢Montel JacksonUpcomingN/A—Ricky SimónUpcomingN/A—
Jauregui vs Demopoulos🟢Yazmin JaureguiUpcomingN/A—Vanessa DemopoulosUpcomingN/A—
Gall vs Dumas🟢Mickey GallUpcomingN/A—Sedriques DumasUpcomingN/A—
Castañeda vs Alatengheili🟢John CastañedaUpcomingN/A—AlatengheiliUpcomingN/A—

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