UFC Vegas 121, also promoted internationally as UFC Fight Night: Rosas Jr. vs Barcelos, is scheduled for Saturday, September 26, 2026, at the Meta APEX in Las Vegas. Raul Rosas Jr. faces Raoni Barcelos in the bantamweight main event. For viewers in Brazil, UFC lists a pre-show at 5 p.m., prelims at 6 p.m. and the main card at 9 p.m., all in Brasília time. Paramount+ will carry the fights, while the pre-show is also scheduled for UFC Brazil's YouTube and TikTok channels and Pluto TV.
UFC Fight Night start times in Brazil on September 26
| Stage | Brasília time | Where to watch |
|---|---|---|
| Pre-show | 5 p.m. | UFC Brazil on YouTube, UFC Brazil on TikTok, Pluto TV and Paramount+ |
| Preliminary card | 6 p.m. | Paramount+ |
| Main card | 9 p.m. | Paramount+ |
UFC Brazil published these times on September 19 and they remain the official reference for the event. The international UFC page also lists the main card at 8 p.m. EDT, which corresponds to 9 p.m. in Brasília on September 26.
Raul Rosas Jr. vs. Raoni Barcelos headlines the event
Rosas Jr. and Barcelos are both making their first UFC main event appearances. The bantamweight bout is scheduled for five rounds. UFC notes that both fighters enter on five-fight winning streaks, but at very different stages of their careers: Rosas Jr., 21, becomes the youngest athlete to headline a UFC event, while the 39-year-old Barcelos reaches his first main event after a strong run of results in the division.
The matchup is expected to draw particular attention to the grappling exchanges. Rosas Jr. has built much of his game around takedowns and control, while Barcelos brings experience, Brazilian jiu-jitsu and strong takedown defense. That does not determine the outcome, but it explains why the technical matchup is one of the event's main storylines.
Confirmed UFC Vegas 121 fight card
On September 21, UFC published a fight-by-fight preview listing 12 scheduled bouts. The split below follows that most recent UFC update.
Main card
- Raul Rosas Jr. vs. Raoni Barcelos
- Rodolfo Vieira vs. Robert Bryczek
- Mehemmedeli Osmanli vs. Ilimbek Akylbek, TUF 34 bantamweight final
- Melissa Amaya vs. Valesca "Tina Black" Machado, TUF 34 women's strawweight final
- Brady Hiestand vs. Rinya Nakamura
Preliminary card
- Rodolfo Bellato vs. Christian Edwards
- Elves Brener vs. Josiah Harrell
- Montel Jackson vs. Ricky Simon
- Norma Dumont vs. Ailin Perez
- John Castaneda vs. Alatengheili
- Mickey Gall vs. Sedriques Dumas
- Vanessa Demopoulos vs. Yazmin Jauregui
Brazilian fighters on the card
Brazil has six representatives on the UFC lineup: Raoni Barcelos, Rodolfo Vieira, Valesca "Tina Black" Machado, Rodolfo Bellato, Elves Brener and Norma Dumont. Barcelos leads the group in the main event. Vieira is on the main card against Robert Bryczek, and Tina Black competes in the women's TUF 34 final against Melissa Amaya. Bellato, Brener and Dumont are listed among the prelims in the September 21 update.
Other reasons to watch the card
In addition to the headliner, the event includes both finals from Season 34 of The Ultimate Fighter. Mehemmedeli Osmanli faces Ilimbek Akylbek in the men's bantamweight final, while Melissa Amaya meets Tina Black in the women's strawweight final. The lineup also features established UFC names in matchups such as Rodolfo Vieira vs. Robert Bryczek, Brady Hiestand vs. Rinya Nakamura and Norma Dumont vs. Ailin Perez.
Where to check last-minute changes
MMA cards can change because of medical issues, weigh-ins, logistics or replacement fighters. This guide should therefore be treated as the card confirmed through September 21, 2026. On event day, the best reference is the official UFC Vegas 121 event page, which brings together the card, start times and live-following links.
For Brazil-specific scheduling and broadcast details, also check the official UFC Brazil guide. The fight-by-fight preview published on September 21 is the source used here for the latest main-card and preliminary-card split.
Quick summary
- Date: Saturday, September 26, 2026.
- Venue: Meta APEX, Las Vegas, United States.
- Pre-show in Brazil: 5 p.m.
- Preliminary card: 6 p.m.
- Main card: 9 p.m.
- Main event: Raul Rosas Jr. vs. Raoni Barcelos, bantamweight, five rounds.
- Fight broadcast in Brazil: Paramount+.
- Card checked and updated using official publications available on September 21, 2026.
