Ailin Perez Grinds Out Unanimous Decision Over Macy Chiasson for Sixth Straight Win

In the pre-dawn darkness of Sunday, March 1, 2026 (late Saturday, February 28, in Mexico City, with prelims heating up around 3:30 AM IST for Mumbai and Indian fans on Paramount+), UFC Fight Night at Arena CDMX delivered a gritty, tactical women’s bantamweight clash near the end of the prelims. Ailin “La Carita” Perez, the brash Argentinian contender ranked No. 7 entering the bout, extended her unbeaten UFC streak to six with a hard-fought unanimous decision victory (29-28, 29-28, 29-28) over No. 8 Macy Chiasson. The three-round war wasn’t a fireworks display of knockouts or submissions, but it was a masterclass in grappling dominance, positional control, and late-round pressure that solidified Perez as one of the division’s most consistent risers.

This matchup carried extra spice from pre-fight tension—Perez’s weigh-in twerking antics irked Chiasson, who called her out for being “boring” and repetitive in interviews. For Indian viewers rising early to catch the prelims before the main card’s flyweight fireworks (including Lone’er Kavanagh’s upset over Brandon Moreno), the fight offered high-level women’s MMA: technical grappling exchanges, heart, and a clear winner who backed up her trash talk with results. Perez’s win moves her closer to title contention in a stacked 135-pound landscape featuring Raquel Pennington, Mayra Bueno Silva, and emerging talents. Let’s break it down in detail—pre-fight context, fighter profiles, round-by-round action, stats, strategy, post-fight fallout, and why this 15-minute grinder stands as one of the card’s most significant prelim bouts.

Pre-Fight Build-Up and Stakes

UFC Mexico City emphasized Latin American pride, and Perez vs. Chiasson slotted as a key prelim feature in the women’s bantamweight division. Perez (12-2 entering, now 13-2), riding a five-fight UFC win streak, was the slight favorite (-150ish) despite fighting “backwards” in rankings. Her recent victories showcased improved striking and elite grappling, positioning her for a Top 5 push. Chiasson (10-5 entering, now 10-6), the TUF 28 winner and a former top contender, aimed to rebound from inconsistencies and re-enter the rankings conversation.

Pre-fight drama amplified interest: Perez’s confident (some said cocky) demeanor, including twerking at weigh-ins and bold claims like “I’m going to be the next champion,” clashed with Chiasson’s more reserved style. Perez even threatened to pull out if Chiasson missed weight (she didn’t). The Arena CDMX crowd leaned pro-Perez with her Latin flair, creating an electric atmosphere. For Mumbai fans at 3:30 AM IST, it was a perfect tactical appetizer—grappling chess with personal stakes.

Fighter Profiles: Grappling Phenom vs. Versatile Veteran

Ailin Perez, 31, stands 5’5″ with a 66-inch reach, fighting orthodox with explosive athleticism and world-class Brazilian Jiu-Jitsu (trained under former Amanda Nunes coach). Her style emphasizes takedowns, top control, and ground-and-pound, blending aggression with transitions. At 13-2 post-fight (6-0 UFC), Perez’s streak ranks among the division’s best, highlighting durability and adaptability.

Macy Chiasson, 34, towers at 5’11” with a 72-inch reach advantage, fighting southpaw/orthodox with long-range striking, submissions, and scrambling ability. The TUF winner has elite potential but recent form showed inconsistencies. Her height and reach make her dangerous standing or in transitions, but she struggled against persistent grapplers.

Round-by-Round Breakdown: Control vs. Moments

Round 1 went to Chiasson on many cards. She used her reach early, landing jabs and a sharp left to keep Perez at bay. Mid-round, Chiasson initiated grappling, securing back control and threatening chokes (rear-naked and body triangle attempts). Perez defended well, avoiding finishes, and reversed late to top position, landing short shots to the horn. Chiasson’s control time and submission threats edged it 10-9.

Round 2 shifted decisively to Perez. She closed distance aggressively, secured a takedown, and established top control. After a brief stand-up (referee reset), Perez dragged it back down, achieving mount and side control with ground-and-pound. Chiasson defended submissions but absorbed elbows and punches. Perez’s pressure and output dominated—10-9 Perez.

Round 3 sealed it. Perez initiated grappling again, controlling Chiasson against the fence and on the mat. She maintained top position, landing effective strikes while Chiasson scrambled unsuccessfully. Perez’s control salted away the round and fight—10-9 Perez.

Referee Raul Porrata let it flow. All three judges scored 29-28 for Perez (Chiasson Round 1, Perez Rounds 2-3).

Statistics and Technical Analysis

UFC Stats highlighted Perez’s dominance:

• Significant strikes: Perez higher volume/accuracy (especially ground), Chiasson cleaner standing early.
• Takedowns: Perez multiple successful, with extended control time (over 7-8 minutes total).
• Submission attempts: Chiasson 2 (Round 1), Perez threats but no finishes.
• Control time favored Perez heavily in Rounds 2-3.

Perez’s chain wrestling neutralized Chiasson’s reach; she dictated where the fight went. Chiasson’s Round 1 back control showed danger, but Perez’s reversals and top pressure proved decisive. Judging rewarded effective grappling and damage over fleeting moments.

Post-Fight Fallout, Bonuses, and Division Impact

Perez’s sixth straight UFC win (third-longest active streak among women) earned praise—no major bonus on a card with quicker finishes. In her Octagon interview, confident and emotional: she called for Tracy Cortez next and reiterated title ambitions. Now firmly Top 5-bound, Perez positions for big matchups.

Chiasson drops to 10-6 (recent setbacks continue). Her durability held, but grappling vulnerabilities exposed. She remains ranked but needs wins.

Women’s bantamweight: Perez’s rise adds pressure to champ Pennington and contenders. The division stays competitive with youth and experience colliding.

Why This Fight Mattered – Indian Fan Perspective

For Mumbai fans up at 3:30 AM IST, this delivered substance: pre-fight trash talk payoff, high-level grappling, and Perez’s heart. Her Latin energy and post-fight flex resonated—highlights (takedowns, control) fueled Sunday debates. It showcased women’s MMA depth—technical, durable, and dramatic.

Technically, it proved persistent grappling beats reach when executed well. Perez’s streak builds legacy.

Final Verdict and Score

Ailin Perez 9 – Macy Chiasson 7.5 (out of 10). A gritty, competitive prelim feature that rewarded grappling mastery. Perez’s control and streak make it significant—watch the full fight for transitions and pressure. Bantamweight’s ladder just got steeper, and “La Carita” climbs relentlessly.