Ailin Perez draws a hard line — won’t fight if Macy Chiasson misses weight in Mexico City
ailin perez said she will refuse to step into the Octagon if Macy Chiasson misses weight for their women’s bantamweight fight scheduled for Saturday, Feb. 28, 2026, at Arena CDMX in Mexico City — a stance that puts the bout’s fate squarely on the scale.
Ailin Perez draws a hard line on weight
Perez, the No. 7-ranked UFC women’s bantamweight, told interviewers she does not plan to accept any excuses after three months of training and deliberate weight preparation ahead of the Mexico City card on Feb. 28, 2026. "If she doesn’t make weight, I won’t fight, " Perez said, adding that she has seen Chiasson in training and believes Chiasson looks like she "might not make weight. " The direct ultimatum makes the upcoming weigh-ins decisive for whether this bout proceeds.
Chiasson’s checkered history with the scale
Macy Chiasson, the Season 28 winner of The Ultimate Fighter, has a documented history of weight troubles: she has missed weight twice in the UFC and required catchweight agreements on two other occasions, including a catchweight bout with Ketlen Vieira mentioned in the fighters’ exchange. Perez noted Chiasson missed weight in her last fight and the one before that, raising the stakes for officials at Arena CDMX on fight week.
Numbers that matter for the Mexico City matchup
Opening odds listed Ailin Perez at -185 and Macy Chiasson at +160 for the Feb. 28, 2026 fight. Perez enters with a 12-2-0 record, listed at 135 pounds, 5'5" with a 66" reach; Chiasson is 11-5-0, listed at 135 pounds, 5'11" with a 72" reach. Strike and takedown data show contrasts: Perez connects on 3. 10 significant strikes per minute and averages 4. 68 takedowns per 15 minutes, while Chiasson lands 3. 50 significant strikes per minute and completes takedowns at a 37% success rate when she attempts them. Those figures outline the matchup dynamics that will play out if both fighters make weight for the Arena CDMX card.
Perez has been blunt about her displeasure with the matchup, saying she would have preferred other opponents ranked above Chiasson, but she also promised a finish after her last result in France. With Perez standing firm on the scale, UFC officials and fight week protocols now carry extra weight in determining whether fans at Arena CDMX will see the bout on Feb. 28, 2026.
Weigh-ins and final medical clearances are the next confirmed milestones ahead of the event; officials will monitor the scale closely before the scheduled fight night at Arena CDMX on Saturday, Feb. 28, 2026.
