UFC Vegas 121 delivered high-stakes bantamweight action and dramatic finishes inside the META APEX in Las Vegas, Nevada, on Saturday, Sept. 26, 2026.
Raul Rosas Jr. vs. Raoni Barcelos Main Event Results
Raul Rosas Jr. defeated Raoni Barcelos by knockout at 1:38 of the fifth round in the bantamweight main event. The youth-versus-experience matchup saw both fighters trade momentum across deep rounds before a bizarre and sudden finish. According to live reporting from the event, Barcelos suffered heavy damage and was knocked out in the final frame when he struck a cage post on the way down, leaving him stiff and requiring immediate medical attention.
Barcelos kept the pressure high through the opening four rounds, targeting the body and taking Rosas down repeatedly. Rosas responded with active guard work, a swelling volume of strikes, and dangerous submission attempts. Neither fighter was projected to make a massive leap up the solidified bantamweight ladder with a victory, but the grueling five-round battle tested both athletes’ durability.
Norma Dumont vs. Ailin Perez Co-Main Event Clash
Ailin Perez earned a unanimous decision victory over Norma Dumont across three tightly contested rounds, with all three judges scoring the bout 29-28 for Perez. Perez utilized her wrestling base to secure takedowns and clinch control against the fence, while Dumont relied on her striking range and counterpunches.
UFC Vegas 121 Full Fight Card Results
- Bantamweight: Raul Rosas Jr. def. Raoni Barcelos by KO (round 5, 1:38)
- Bantamweight: Ailin Perez def. Norma Dumont by unanimous decision (29-28, 29-28, 29-28)
- Middleweight: Luis Fernandez def. Sedriques Dumas by submission via guillotine (round 1, 0:57)
- Bantamweight: Ilimbek Akylbek Uulu def. Mehemmedeli Osmanli by DQ due to an illegal knee to a grounded opponent (round 1, 2:19)
- Strawweight: Tina Black def. Melissa Amaya by TKO via punches (round 2, 3:19)
- Bantamweight: Brady Hiestand def. Rinya Nakamura by submission via rear-naked choke (round 2, 4:07)
- Middleweight: Rodolfo Vieira def. Robert Bryczek by unanimous decision (30-27, 30-27, 30-27)
- Light Heavyweight: Christian Edwards def. Rodolfo Bellato by TKO via punches (round 3, 1:47)
- Lightweight: Elves Brener def. Josiah Harrell by TKO via punches (round 2, 4:14)
- Bantamweight: Montel Jackson def. Ricky Simón by TKO via punches (round 2, 2:39)
- Bantamweight: Alatengheili def. John Castañeda by split decision (28-29, 29-28, 29-28)
- Strawweight: Yazmin Jauregui def. Vanessa Demopoulos by TKO via punches (round 1, 1:02)
Pro Tip: Replay coverage and comprehensive event archives for UFC Vegas 121 remain available for streaming on Paramount+.
Frequently Asked Questions About UFC Vegas 121
Where did UFC Vegas 121 take place?
The event took place inside the META APEX facility in Las Vegas, Nevada.
How can I watch UFC Vegas 121 replays?
Full event replays and preliminary card coverage are available to stream online via Paramount+.
Who won the main event at UFC Vegas 121?
Raul Rosas Jr. defeated Raoni Barcelos by knockout at 1:38 of the fifth round.
What was the result of the Norma Dumont vs. Ailin Perez fight?
Ailin Perez defeated Norma Dumont via unanimous decision with scores of 29-28 across all three judges.
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