Raul Rosas Jr. is a UFC main event winner. The 21-year-old survived a five-round grind with veteran Raoni Barcelos and won it on a freak, accidental knockout late in the fifth round, headlining UFC Fight Night: Rosas Jr. vs. Barcelos in Las Vegas. Below is what happened in every one of the 12 fights on the card, a night that also crowned two Ultimate Fighter season 34 tournament champions.
The Main Event
Rosas Jr., ranked No. 12 in the bantamweight division, and Barcelos, ranked No. 13, spent nearly all five rounds trading wrestling exchanges before the fight ended in bizarre fashion. Deep into round five of Rosas Jr. vs. Barcelos, Barcelos shot for a takedown; Rosas Jr. answered with a trip of his own, and the two men's heads collided on the way to the canvas. Barcelos was knocked unconscious instantly, and the fight was waved off at 1:38 of the fifth round.
It's a landmark win for Rosas Jr., the youngest fighter the UFC has ever signed, who becomes a main-event winner at 21 and extends his streak to six straight. It came at real cost to his 39-year-old opponent: Barcelos was stretchered out of the arena and taken to a hospital for evaluation, though he was reported conscious and undergoing head and neck scans afterward. Barcelos had been in the best form of his career, on a five-fight win streak chasing a first UFC title shot, and this loss halts that run in the ugliest way possible for a veteran who took the fight to the final horn.
The Rest of the Main Card
Ailin Perez def. Norma Dumont, decision (unanimous), round 3. The co-main event pitted the No. 3- and No. 4-ranked women's bantamweights against each other, and all three judges had it 29-28 for Perez. Dumont found a takedown and some forward pressure in round two, but Perez's busier output down the stretch was enough to swing a close, largely uneventful fight her way. It's the biggest win of Perez's UFC career and snaps Dumont's push back toward the win column after her own April setback.
Luis Hernandez def. Sedriques Dumas, submission (guillotine choke), round 1, 0:57. Hernandez, a Miami-Dade Sheriff's deputy who earned his contract on Dana White's Contender Series just eleven days earlier, stepped in on roughly two days' notice for an injured Mickey Gall and jumped up a weight class to face Dumas. He needed less than a minute, dropping Dumas with a hook before locking up a guillotine that Dumas briefly tried to scramble out of and tapped to at 0:57. Hernandez moves to a perfect 9-0.
Ilimbek Akylbek Uulu def. Mehemmedeli Osmanli, disqualification (illegal knee), round 1, 2:19. The Ultimate Fighter season 34 bantamweight final ended in unusual fashion: Osmanli put Akylbek Uulu on the canvas, then followed him down with a knee that landed illegally on his grounded opponent's head, knocking him out and forcing an immediate DQ ruling. The result still stands as a title — Akylbek Uulu becomes the first fighter from Kyrgyzstan to win a season of The Ultimate Fighter.
Valesca Machado def. Melissa Amaya, KO/TKO (punches), round 2, 3:19. The women's strawweight TUF 34 final went the opposite way of the bantamweight final — a clean finish. Machado, fighting as "Tina Black," circled away from Amaya's pressure and picked her shots before landing a right hook off a clinch break, then closed the show with a follow-up combination. It's the first stoppage loss of Amaya's career, which entered the fight undefeated at 8-0, and the tournament title for a fighter who had never previously been finished herself.
The Prelims
Seven preliminary fights opened the card, headlined by a middleweight bout that had been bumped down from its original co-main billing during fight week.
| Fight | Winner | Method |
|---|---|---|
| Nakamura vs. Hiestand | Brady Hiestand | Submission (rear-naked choke), round 2, 4:07 |
| Vieira vs. Bryczek | Rodolfo Vieira | Decision (unanimous), round 3 |
| Bellato vs. Edwards | Christian Edwards | KO/TKO (punches), round 3, 1:47 |
| Brener vs. Harrell | Elves Brener | KO/TKO (punches), round 1, 4:14 |
| Jackson vs. Simon | Montel Jackson | KO/TKO (punches), round 2, 2:39 |
| Castañeda vs. Alatengheili | Alatengheili | Decision (split), round 3 |
| Jauregui vs. Demopoulos | Yazmin Jauregui | KO/TKO (punches), round 1, 1:02 |
The card opened with its fastest finish: Yazmin Jauregui needed just 62 seconds to stop Vanessa Demopoulos, following her to the canvas after a failed armbar attempt and finishing with hammerfists — an emphatic return after more than two years away from the Octagon. Christian Edwards pulled off the night's best comeback, getting dropped early by Rodolfo Bellato and hunted for two rounds before turning the fight with a third-round hook and finishing on the follow-up. Elves Brener snapped a two-fight skid by stuffing a takedown and dropping Josiah Harrell with a counter right hook, and Montel Jackson avenged a 2018 loss to Ricky Simon with a second-round stoppage of his own. Rodolfo Vieira, in the fight that had been elevated to co-main before a late reshuffle bumped it back to the prelims, shut down Robert Bryczek with wall-to-wall grappling, sweeping all three scorecards 30-27. Alatengheili edged a rock fight with veteran John Castañeda on a split verdict, and Brady Hiestand closed the prelims by taking Rinya Nakamura's back for a second-round rear-naked choke.
What It Means
Rosas Jr.'s first main event came the hard way — five rounds against a durable veteran, settled by a freak collision rather than his usual submission game — but a win is a win, and at 21 he now has a headline victory and a six-fight streak to build on. Barcelos's health is the more pressing story out of the main event; the promotion has not said whether the loss will affect his standing beyond the result itself. In the co-main, Ailin Perez's win over a ranked veteran in Norma Dumont is the kind of result that moves a fighter into the sport's actual title conversation, not just closer to one. And with two Ultimate Fighter titles handed out on the same card — one by clean finish, one by disqualification — the show's season 34 cast now has its first UFC-level storylines to build from. Full fighter breakdowns, records and the pre-fight matchup notes for every bout are on the event page.