UFC Fight Night: Rosas Jr. vs. Barcelos (also UFC Vegas 121 / Fight Night 289) lands Saturday, September 26, 2026, at the Meta APEX (UFC APEX) in Las Vegas. The bantamweight main event pits ranked prospect Raul Rosas Jr. against streaking veteran Raoni Barcelos on a 12-fight card that also features Rodolfo Vieira vs Robert Bryczek, dual TUF 34 finals, and Rinya Nakamura vs Brady Hiestand. Below: event times in ET/PT, Paramount+ how to watch, current moneylines, and process-focused keys for every bout — plus Cappers Direct UFC Vegas 121 packages at the top.
Cappers Direct UFC Vegas 121 Packages — Get the Card Covered
Looking for more than a free preview? Cappers Direct has dedicated UFC Vegas 121 packages for Rosas Jr. vs. Barcelos this Saturday. These are paid products for members who want full write-ups and guaranteed Max picks — this free preview does not include free picks or projected winners.
- The fight card and all write ups — $29.99: full-card coverage with detailed write-ups for UFC Vegas 121.
- The UFC guaranteed Max fight pick — $25: Cappers Direct’s guaranteed Max fight pick for this card.
- The UFC guaranteed Max fight pick parlay — $25: guaranteed Max fight pick parlay package for UFC Vegas 121.
Sign up for Cappers Direct UFC packages here — create your account and unlock UFC Vegas 121 products at https://www.cappersdirect.com/account/signup/UFC/.
Packages are built for this fight week. Grab what you need before the prelims open Saturday afternoon.
UFC Vegas 121 Rosas Jr. vs Barcelos: Event Info, How to Watch & Odds Disclaimer
UFC Vegas 121 is scheduled for Saturday, September 26, 2026. There are no early prelims on this card. Prelims are listed at 5:00 PM ET / 2:00 PM PT, and the main card at 8:00 PM ET / 5:00 PM PT. The venue is the Meta APEX (also billed UFC APEX / Meta Apex) in Las Vegas (Enterprise), Nevada. U.S. prelims and main card stream on Paramount+ under the 2026 broadcast deal.
Moneylines below are primarily from the UFC.com event page (live listing as of September 23, 2026). Two bouts — Osmanli vs Akylbek and Amaya vs Tina Black (Valesca Machado) — were blank on UFC.com at research time and use Bovada numbers via FightBookMMA (Sep 23). Lines move — always verify live prices with your sportsbook before wagering. This article is informational only and does not project winners or include betting recommendations.
| Detail | Info |
|---|---|
| Event | UFC Fight Night: Rosas Jr. vs. Barcelos (UFC Vegas 121 / Fight Night 289) |
| Date | Saturday, September 26, 2026 |
| Early prelims | None |
| Prelims | 5:00 PM ET / 2:00 PM PT |
| Main card | 8:00 PM ET / 5:00 PM PT |
| Venue | Meta APEX (UFC APEX), Las Vegas, Nevada, USA |
| Broadcast | Paramount+ (prelims + main card) |
| Odds snapshot | UFC.com + Bovada via FightBookMMA (Sep 23, 2026); lines move |
UFC Vegas 121 Full Fight Card Overview
Twelve confirmed bouts — five on the main card and seven on the prelims. Records from ESPN Fight Center; moneylines from the Sep 23 snapshot noted above.
| Section | Bout | Weight | Records | Moneylines |
|---|---|---|---|---|
| Main Card | Raul Rosas Jr. vs Raoni Barcelos | Bantamweight (5) | 12-1-0 / 22-5-0 | −170 / +140 |
| Main Card | Rodolfo Vieira vs Robert Bryczek | Middleweight | 11-5-0 / 18-7-0 | −155 / +130 |
| Main Card | Mehemmedeli Osmanli vs Ilimbek Akylbek | Bantamweight (TUF 34 Final) | 12-1-0 / 10-3-0 | −290 / +240 |
| Main Card | Melissa Amaya vs Tina Black (Valesca Machado) | Women’s Strawweight (TUF 34 Final) | 8-0-0 / 15-4-0 | +180 / −215 |
| Main Card | Brady Hiestand vs Rinya Nakamura | Bantamweight | 9-2-0 / 10-1-0 | +275 / −350 |
| Prelims | Rodolfo Bellato vs Christian Edwards | Light Heavyweight | 13-3-1 / 8-5-0 | −180 / +150 |
| Prelims | Elves Brener vs Josiah Harrell | Lightweight | 16-6-0 / 11-1-0 | +110 / −130 |
| Prelims | Montel Jackson vs Ricky Simón | Bantamweight | 15-4-0 / 22-7-1 | −205 / +170 |
| Prelims | Norma Dumont vs Ailín Pérez | Women’s Bantamweight | 13-3-0 / 13-2-0 | +115 / −135 |
| Prelims | John Castañeda vs Alatengheili | Bantamweight | 21-8-1 / 17-10-2 | −325 / +265 |
| Prelims | Mickey Gall vs Sedriques Dumas | Middleweight | 7-7-0 / 10-5-0 | −160 / +135 |
| Prelims | Vanessa Demopoulos vs Yazmin Jauregui | Women’s Strawweight | 11-8-0 / 11-2-0 | +650 / −1000 |
UFC Vegas 121 Main Card Fight-by-Fight Preview
The main card opens in bantamweight and builds to a five-round ranked bout between Rosas Jr. and Barcelos. Each bout below includes records, weight class, current moneylines from the Sep 23 snapshot, and process-focused keys for both fighters — no free picks or projected winners.
Raul Rosas Jr. vs Raoni Barcelos — Main Event — Bantamweight (5 rounds)
| Fighter | Record | ML (UFC.com Sep 23) |
|---|---|---|
| Raul Rosas Jr. | 12-1-0 | −170 |
| Raoni Barcelos | 22-5-0 | +140 |
Weight class: Bantamweight (5 rounds, non-title). Odds source: UFC.com event page (live listing Sep 23, 2026). Lines move.
Raul Rosas Jr. (12-1-0), ranked No. 12 at bantamweight, enters his first UFC main event and first scheduled five-rounder at age 21. He is 6-1 in the UFC on a five-fight win streak that includes a unanimous decision over Rob Font (UFC 326) with high reported takedown volume, plus prior stoppages of Perrin, Mitchell, and Turcios. His only pro loss was a unanimous decision to Christian Rodriguez in 2023. High control-time wrestling frames his path into this ranked matchup.
Raoni Barcelos (22-5-0), ranked No. 13, is 11-4 in the UFC and also rides a five-fight streak (Quinonez RNC; decisions over Talbott, Garbrandt, Simon, and a split over Jackson in April 2026). At 39, he is the first ranked opponent for Rosas Jr. Prior setbacks include a KO loss to Umar Nurmagomedov and a decision loss to Kyler Phillips.
Keys for Raul Rosas Jr.: Convert high-volume wrestling and control-time sequences across five rounds, chain takedown entries so Barcelos has to reset repeatedly, and manage pace in his first scheduled five-rounder.
Keys for Raoni Barcelos: Stuff early wrestling volume, keep exchanges upright where veteran striking and timing can work, and force Rosas Jr. to earn every minute rather than settle into prolonged top control.
Rodolfo Vieira vs Robert Bryczek — Co-Main Event — Middleweight
| Fighter | Record | ML (UFC.com Sep 23) |
|---|---|---|
| Rodolfo Vieira | 11-5-0 | −155 |
| Robert Bryczek | 18-7-0 | +130 |
Weight class: Middleweight (3 rounds). Odds source: UFC.com event page (Sep 23, 2026). Lines move. Note: opening boards had Bryczek favored; fight-week UFC.com/Bovada list Vieira as favorite.
Rodolfo Vieira (11-5-0) is a decorated BJJ black belt whose recent form includes losses in three of his last four, including a head-kick KO to Bo Nickal. Grappling entries and submission threat remain the core of his middleweight game.
Robert Bryczek (18-7-0) brings a striker’s profile into the co-main. His recent UFC stretch sits near 1-2, with a Round 3 TKO of Brad Tavares (2025) followed by a decision loss to Cameron Rowston (May 2026). Stand-up power versus grappling pressure defines the style framing.
Keys for Rodolfo Vieira: Close distance into clinch and mat work, hunt level changes that neutralize striking exchanges, and convert BJJ sequences into control or finishing windows before Bryczek settles into range.
Keys for Robert Bryczek: Keep the fight upright with clean striking, stuff early takedown attempts, and force pocket or kicking exchanges where power can blunt grappling entries.
Mehemmedeli Osmanli vs Ilimbek Akylbek — TUF 34 Bantamweight Final
| Fighter | Record | ML (Bovada Sep 23) |
|---|---|---|
| Mehemmedeli Osmanli | 12-1-0 | −290 |
| Ilimbek Akylbek | 10-3-0 | +240 |
Weight class: Bantamweight (3 rounds) — The Ultimate Fighter 34 (Team Cormier vs Team Bisping) bantamweight tournament final. Odds source: Bovada via FightBookMMA Sep 23, 2026 (UFC.com blank at research pull). Lines move.
Mehemmedeli Osmanli (12-1-0) of Azerbaijan advanced through TUF with a submission-heavy path (including buggy choke / RNC reports in tournament coverage) and carries a high finish rate among the finalists.
Ilimbek Akylbek (also billed Ilimbek Akylbek uulu; 10-3-0) of Kyrgyzstan leaned wrestling and grappling through the TUF bracket. Tournament bouts are exhibitions and do not add to pro records — this finale is the scored UFC bout for both.
Keys for Mehemmedeli Osmanli: Carry the TUF submission path into early and mid-round grappling sequences, force scrambles where finish rate can matter, and keep pressure on without leaving large defensive gaps.
Keys for Ilimbek Akylbek: Use wrestling and grappling focus to disrupt submission hunting, chain control minutes, and make the finale a mat-test rather than a pure finishing scramble.
Melissa Amaya vs Tina Black (Valesca Machado) — TUF 34 Women’s Strawweight Final
| Fighter | Record | ML (Bovada Sep 23) |
|---|---|---|
| Melissa Amaya | 8-0-0 | +180 |
| Tina Black (Valesca Machado) | 15-4-0 | −215 |
Weight class: Women’s Strawweight (3 rounds) — TUF 34 women’s strawweight final. Odds source: Bovada via FightBookMMA Sep 23, 2026 (lists Valesca Machado; UFC.com blank at research pull). Lines move.
Melissa Amaya (8-0-0) of the United States remains undefeated, with Combate Global stoppages (Jean-Francois, Sugimoto) and TUF wins over Melisano (RNC) and Canuto (TKO) framing her path into the finale.
Tina Black — billed on UFC.com/ESPN as Tina Black and also known by her given name Valesca Machado (15-4-0) — brings an Invicta FC / A1 Combat strawweight title background as Team Cormier’s No. 1 pick. She advanced through the opposite side of the bracket to reach this finale.
Keys for Melissa Amaya: Sustain the undefeated finishing pace from Combate and TUF, force early submission or stoppage windows, and keep Machado defending rather than settling into a veteran decision frame.
Keys for Tina Black (Valesca Machado): Rely on Invicta/A1 experience and title-level pacing, weather early finishing bursts, and turn the fight into longer sequences where résumé depth can matter.
Brady Hiestand vs Rinya Nakamura — Bantamweight Bout
| Fighter | Record | ML (UFC.com Sep 23) |
|---|---|---|
| Brady Hiestand | 9-2-0 | +275 |
| Rinya Nakamura | 10-1-0 | −350 |
Weight class: Bantamweight (3 rounds). Odds source: UFC.com event page (Sep 23, 2026). Lines move.
Brady Hiestand (9-2-0) was originally booked against Nakamura for UFC 298 (February 2024) before an injury cancellation; the rematch arrives roughly 2.5 years later. Some roundups noted a three-fight win streak context entering this booking.
Rinya Nakamura (10-1-0), Road to UFC Season 1 bantamweight winner, owns only one pro loss (decision) and recent previews cite a first-round TKO finish in his latest outing. Athleticism and finishing threat frame the Japanese prospect side of this delayed matchup.
Keys for Brady Hiestand: Use the long layoff context to settle early, force wrestling and clinch exchanges that blunt finishing bursts, and keep the fight structured through three rounds.
Keys for Rinya Nakamura: Carry Road to UFC finishing athleticism into early pressure, hunt stoppage windows before Hiestand settles, and stay disciplined if the bout extends past familiar territory.
UFC Vegas 121 Prelims Fight-by-Fight Preview
Prelims are scheduled for 5:00 PM ET / 2:00 PM PT on Paramount+. Seven bouts open the night from women’s strawweight through light heavyweight. Order follows the UFC.com card toward the main-card bridge.
Rodolfo Bellato vs Christian Edwards — Light Heavyweight Bout
| Fighter | Record | ML (UFC.com Sep 23) |
|---|---|---|
| Rodolfo Bellato | 13-3-1 | −180 |
| Christian Edwards | 8-5-0 | +150 |
Weight class: Light Heavyweight (3 rounds). Odds source: UFC.com event page (Sep 23, 2026). Lines move.
Rodolfo Bellato (13-3-1; some listings also note 1 NC) out of Rio brings light heavyweight depth and recent Octagon mileage into the prelims opener slot toward the main-card bridge.
Christian Edwards (8-5-0) of Albuquerque enters looking to reverse recent form in a classic LHW depth matching — size, power, and three-round pacing define the matchup.
Keys for Rodolfo Bellato: Dictate early pace with pressure and volume, force Edwards into defensive sequences, and manage minutes so light heavyweight power exchanges do not spiral.
Keys for Christian Edwards: Weather early pressure, look for clean power moments in the pocket, and turn the fight into uncomfortable exchanges before Bellato settles into control.
Elves Brener vs Josiah Harrell — Lightweight Bout
| Fighter | Record | ML (UFC.com Sep 23) |
|---|---|---|
| Elves Brener | 16-6-0 | +110 |
| Josiah Harrell | 11-1-0 | −130 |
Weight class: Lightweight (3 rounds). Odds source: UFC.com event page (Sep 23, 2026; lists Brener first). Lines move.
Elves Brener (16-6-0) of Brazil arrives with recent three-fight losing-skid context noted in card write-ups — experience and finishing threat remain part of his lightweight profile.
Josiah Harrell (11-1-0) of the United States is booked as a rebound after a UFC debut KO loss (February 2026 context in roundups). Athleticism and finishing urge frame his side of a near-pick’em lightweight prelim.
Keys for Elves Brener: Use veteran pacing and finishing threat to disrupt Harrell’s rebound urgency, force longer exchanges, and avoid early chaos where debut-skid energy can equalize.
Keys for Josiah Harrell: Carry rebound urgency into clean early sequences, stay composed after the debut setback, and dictate pace without overextending into counters.
Montel Jackson vs Ricky Simón — Bantamweight Bout — Rematch
| Fighter | Record | ML (UFC.com Sep 23) |
|---|---|---|
| Montel Jackson | 15-4-0 | −205 |
| Ricky Simón | 22-7-1 | +170 |
Weight class: Bantamweight (3 rounds) — rematch. Odds source: UFC.com event page (Sep 23, 2026). Lines move.
Montel Jackson (15-4-0) recently took split-decision losses to Deiveson Figueiredo and to Barcelos (April 2026). Length, kicking range, and athletic striking define his rematch approach.
Ricky Simón (also Ricky Simon; 22-7-1) previously beat Jackson in Jackson’s UFC debut. Recent form includes a unanimous-decision loss to Barcelos (November) and a draw with Adrian Yanez (March 2026). Both men share recent losses to main-eventer Barcelos, which adds context to this rematch.
Keys for Montel Jackson: Use length and kicking range to keep Simón on the outside, manage rematch familiarity without overcommitting, and force striking exchanges where athleticism can accumulate.
Keys for Ricky Simón: Close distance into wrestling and clinch work that blunted Jackson historically, force grappling sequences, and make the rematch a control test rather than a pure kicking duel.
Norma Dumont vs Ailín Pérez — Women’s Bantamweight Bout — #4 vs #5
| Fighter | Record | ML (UFC.com Sep 23) |
|---|---|---|
| Norma Dumont | 13-3-0 | +115 |
| Ailín Pérez | 13-2-0 | −135 |
Weight class: Women’s Bantamweight (3 rounds) — ranked No. 4 Dumont vs No. 5 Pérez, the highest-ranked women’s bout on the card. Odds source: UFC.com event page (Sep 23, 2026). Lines move.
Norma Dumont (13-3-0) of Brazil previously stacked wins over Irene Aldana and Ketlen Vieira before a unanimous-decision loss to Joselyne Edwards (April 2026). Reach, kicking volume, and ranked experience frame her side.
Ailín Pérez (also Ailin Perez; 13-2-0) of Argentina enters with five-fight win-streak context including decisions over Macy Chiasson and Karol Rosa, plus a prior win over Joselyne Edwards (2024) — a common opponent with Dumont.
Keys for Norma Dumont: Use reach and kicking volume to control range, weather early wrestling pressure, and force longer striking sequences where ranked experience can matter.
Keys for Ailín Pérez: Chain wrestling and pressure that defined the recent streak, close distance cleanly against kicking range, and make the fight a control-and-pace test over three rounds.
John Castañeda vs Alatengheili — Bantamweight Bout
| Fighter | Record | ML (UFC.com Sep 23) |
|---|---|---|
| John Castañeda | 21-8-1 | −325 |
| Alatengheili | 17-10-2 | +265 |
Weight class: Bantamweight (3 rounds). Odds source: UFC.com event page (Sep 23, 2026). Lines move.
John Castañeda (also John Castaneda; 21-8-1) is listed as a heavy favorite on fight-week boards in this veteran bantamweight matchup. Pressure, experience, and Octagon mileage frame his approach.
Alatengheili (also Alateng Heili / Heili Alateng; 17-10-2) of China brings regional and UFC depth into the underdog role — durability and opportunistic striking remain part of the profile.
Keys for John Castañeda: Sustain pressure and volume that fight-week boards imply, force Alatengheili into defensive sequences, and keep exchanges clean without chasing unnecessary risk.
Keys for Alatengheili: Weather early pressure, look for opportunistic counters and clinch moments, and extend the fight into minutes where favorite pacing can be tested.
Mickey Gall vs Sedriques Dumas — Middleweight Bout
| Fighter | Record | ML (UFC.com Sep 23) |
|---|---|---|
| Mickey Gall | 7-7-0 | −160 |
| Sedriques Dumas | 10-5-0 | +135 |
Weight class: Middleweight (3 rounds). Odds source: UFC.com event page (Sep 23, 2026). Lines move. Confirmed on UFC.com / Wikipedia / ESPN / UFC Stats (some Sep 22 secondary roundups incorrectly omitted this bout).
Mickey Gall (7-7-0) returns in a middleweight depth prelim with submission threat and veteran Octagon familiarity as the core of his game.
Sedriques Dumas (10-5-0) brings athletic striking and length into a classic middleweight depth matchup — both sides looking to reverse or stabilize recent form.
Keys for Mickey Gall: Force grappling and submission sequences where experience can blunt athletic striking, close distance cleanly, and keep Dumas defending rather than ranging freely.
Keys for Sedriques Dumas: Keep the fight upright with length and athletic striking, stuff early takedown attempts, and force pocket or kicking exchanges over three rounds.
Vanessa Demopoulos vs Yazmin Jauregui — Women’s Strawweight Bout
| Fighter | Record | ML (UFC.com Sep 23) |
|---|---|---|
| Vanessa Demopoulos | 11-8-0 | +650 |
| Yazmin Jauregui | 11-2-0 | −1000 |
Weight class: Women’s Strawweight (3 rounds). Odds source: UFC.com event page (Sep 23, 2026). Lines move. Jauregui is the largest favorite on the card on fight-week boards.
Vanessa Demopoulos (11-8-0) is a veteran strawweight with submission threat and Octagon mileage — the underdog role on fight-week boards frames a classic experience-versus-finishing-form contrast.
Yazmin Jauregui (11-2-0) of Mexico enters as the extreme favorite on UFC.com/Bovada fight-week prices, bringing finishing striking and recent momentum into the women’s strawweight prelim slot.
Keys for Vanessa Demopoulos: Force scrambles and submission windows that blunt finishing striking, weather early power bursts, and drag exchanges into uncomfortable grappling territory.
Keys for Yazmin Jauregui: Carry finishing striking into early and mid-round pressure, keep Demopoulos defending at range, and stay disciplined if the veteran pulls the fight into scrambles.
UFC Vegas 121 Odds: Lines Move — Verify Before You Bet
That is the full UFC Fight Night: Rosas Jr. vs. Barcelos (UFC Vegas 121) fight card for September 26, 2026, at the Meta APEX in Las Vegas — 12 fights from prelims through the five-round bantamweight main event, with UFC.com and Bovada moneylines from the September 23, 2026 snapshot and how-to-watch details for Paramount+ (prelims 5:00 PM ET / 2:00 PM PT, main card 8:00 PM ET / 5:00 PM PT; no early prelims). Odds change; UFC.com and sportsbooks may show different numbers by fight night. Always verify current lines, bout status, and broadcast windows before wagering. For paid write-ups and guaranteed Max picks on this card, see the Cappers Direct UFC signup. This preview is for informational and SEO context only and does not project winners or include betting recommendations.