UFC Mexico’s women’s bantamweight clash pits the surging Argentinian grappler Ailin Perez against the experienced American striker Macy Chiasson. This 135-pound matchup features a textbook striker-vs-grappler dynamic at Arena CDMX in Mexico City.
Perez enters as the favorite, riding her elite takedown game and decision-winning formula, while Chiasson brings significant size, reach, and striking output as the underdog.
Perez opens as a -185 favorite with Chiasson at +150. Here’s how we’re betting UFC Mexico: Perez vs Chiasson, including our UFC predictions, best bet, key props, and expert final verdict.
Event: UFC Mexico
Weight class: UFC Women’s Bantamweight bout
Fight length: 3-round prelim card fight
Date & time: Feb 28, 2026 – Preliminary card 5:00 p.m. ET, walk time ~06:50 p.m. ET
Venue: Arena CDMX, Mexico City, Mexico
Best Bet: Ailin Perez by Decision (-105)
Book: Best price at BetMGM/FD
Here are the latest odds from top sportsbooks.
| Market | BetMGM | FanDuel | Best Odds |
| Moneyline | Perez -184 / Chiasson +148 | Perez -185 / Chiasson +150 | Chiasson +150 (FD) |
| Fight Goes Distance | Yes -300 / No +210 | Yes -280 / No +210 | No +210 (BetMGM/FD) |
| Total Rounds O/U 2.5 | NA | Over -350 / Under +250 | Under +250 (FD) |
| Perez by Decision | -125 | -125 | -125 (BetMGM/FD) |
| Perez by Submission | +1100 | +1100 | +1100 (BetMGM/FD) |
| Perez by KO/TKO | +800 | +850 | +850 (FD) |
| Chiasson by Decision | +275 | +300 | +300 (FD) |
| Chiasson by Submission | +900 | +750 | +900 (FD) |
| Chiasson by KO/TKO | +800 | +1000 | +1000 (FD) |
Odds updated: February 27, 2026 – 12:30 AM ET. Lines may move before fight night, especially after weigh-ins or late injury news.
| Tale Of The Tape | Ailin Perez | Macy Chiasson |
| Record | 12-2 | 11-5 |
| Age | 31 | 34 |
| Height | 5’5″ | 5’11” |
| Reach | 66″ | 72″ |
| Stance | Switch | Orthodox |
| Sig. Strikes Landed | 3.10 | 3.50 |
| Striking Accuracy | 54% | 46% |
| Sig. Strikes Absorbed | 1.79 | 2.86 |
| Striking Defense | 55% | 45% |
| Takedown Accuracy | 46% | 37% |
| Takedown Defense | 66% | 72% |
| Submission Avg. | 0.2 | 0.4 |
Chiasson holds a massive inch reach advantage and leads in raw strike output, while Perez counters with superior accuracy, far less damage absorbed, and a devastating 4.68 takedown average. Chiasson’s 45% striking defense is a glaring vulnerability against someone who lands at 54%.
Perez enters at 12-2 riding serious momentum. The 31 year old Argentinian has built her game around elite wrestling and grappling control, consistently dragging opponents into uncomfortable positions and grinding out dominant decisions.
Strengths: Elite 4.68 takedown average. Switch stance creates constant angle problems. Superior 54% striking accuracy. Absorbs just 1.79 significant strikes per minute. Her 12-2 record reflects quality competition handled with minimal setbacks.
Weaknesses: Modest 66″ reach creates a 6-inch disadvantage. At 55%, her striking defense is workable but not elite. A 0.2 submission average despite heavy grappling suggests she rarely finishes dramatically. Decision victories are her primary path.
Betting Angles: The -184 moneyline offers limited value. Perez by Decision at -125 is where the real value lies. Her wrestling-dominant style almost guarantees a points win if she executes.
Chiasson arrives at 11-5 with legitimate physical tools that can’t be dismissed. The 34-year-old American possesses real size and reach advantages that give her striking a different look than most of Perez’s previous opponents.
Strengths: A 6-inch reach advantage. 3.50 significant strikes landed per minute leads this matchup in raw output. Carries genuine knockout power, and her 72% takedown defense is her strongest statistical number.
Weaknesses: Her 45% striking defense is alarming against a precise, accurate striker. Absorbing 2.86 significant strikes per minute compounds over three rounds. At 34 with accumulated wear. Her 37% takedown accuracy offers limited offensive wrestling if she needs to control Perez in return.
Betting Angles: Chiasson’s +150 moneyline carries genuine upset potential if she keeps the fight standing and exploits her reach early. Chiasson by Decision at +300 provides the best legitimate path to profit.
Perez’s 4.68 takedown average will stress Chiasson’s 72% takedown defense repeatedly across three rounds, and that number degrades with fatigue. Once Perez establishes her wrestling, she dictates pace, position, and damage accumulation.
Her 54% accuracy means she competes on the feet too. At -125 (implied ~56%), this significantly undervalues a fighter we project at 65-70% to win this specific way.
Chiasson’s 45% striking defense combined with Perez’s grinding, accumulating style and ground-and-pound can invite a late referee intervention. Perez rarely finishes early, but three rounds of sustained wrestling wear on a 34 year old’s chin and body. At +210 (implied 32.3%), this provides solid secondary value.
Extremely small stake only. Chiasson carries real power and a 6 inch reach to land clean shots if Perez overcommits on sloppy takedown entries. One well-timed overhand right on a bad shot could flip the entire fight. At +1000 (implied 9.1%), a 0.1-unit flier covers the scenario where Chiasson’s physical tools produce a clean early finish.
Official pick: Ailin Perez by Unanimous Decision
We’re backing Perez to grind out a dominant 3-round decision, controlling Chiasson with relentless wrestling and outlasting the American’s physical advantages through superior technique and conditioning.
We see Perez probing early with switch-stance striking before committing to takedown attempts late in round one. Chiasson’s jab and reach should keep the opening round competitive. She may even nick round one if she keeps it standing.
Rounds two and three should belong to Perez. Her relentless takedown volume should wear Chiasson’s defense down, her ground control eats the clock, and Perez’s superior conditioning shines at over 7,000 feet of altitude.
Chiasson’s 45% striking defense allows enough clean shots even upright to give Perez the round. Three clear rounds on the scorecards and a straightforward unanimous decision for the Argentinian.
Main Card (8:00 p.m. ET – Paramount+)
Brandon Moreno vs Lee Kavanagh – Flyweight, 3 rounds
Marlon Vera vs Daniel Martinez – Bantamweight, 3 rounds
Daniel Zellhuber vs Kevin Green – Lightweight, 3 rounds
Edgar Chairez vs Felipe Bunes – Flyweight, 3 rounds
Irin Rodriguez vs Karina Borjas – Women’s Flyweight, 3 rounds
Steven Luna vs Alex Pacheco – Bantamweight, 3 rounds
Prelims (5:00 p.m. ET – Paramount+)
Ailin Perez vs Macy Chiasson – Women’s Bantamweight, 3 rounds
Ryan Gandra vs Jose Daniel Medina – Middleweight, 3 rounds
Cristian Quinonez vs Kris Moutinho – Bantamweight, 3 rounds
Deni Silva de Andrade vs Jhonny Rugeles – Bantamweight, 3 rounds
Edgar Silva vs Freddy Marshall – Middleweight, 3 rounds
William Schultz vs David Pinas – Welterweight, 3 rounds
Odds current as of February 27, 2026.
(Image Credit: Joe Camporeale – Imagn Images)
mma I am a dedicated MMA and Boxing content writer at The Playoffs. I was instantly hooked on MMA after watching the fight between Lyoto Machida vs. Gegard Mousasi back in 2014, and since then, i have been an avid writer with a deep love for the sport and its techniques, providing readers with a thorough understanding of the sport. My favorite aspect of working at The Playoffs is the creative freedom it provides. The diverse range of topics, from listicles and SEO to news articles, keeps me engaged and motivates me to continuously improve my skills! I aim to capture the excitement of the combat sports world in my writing, acting as the middleman between fighters and their die-hard fans. It is kind of like a referee, but with words!
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