Macy Chiasson — Beatriz Mesquita: fight result and stats

UFC 334’s women’s bantamweight contest between Macy Chiasson and Beatriz Mesquita presents a compelling clash of experience, physical advantages and elite grappling. Chiasson brings an established UFC résumé, considerable height and reach, and the ability to finish opponents both standing and on the ground. Across the Octagon, the undefeated Mesquita arrives with a formidable Brazilian jiu-jitsu pedigree and a growing collection of impressive submission victories. The central question is whether Chiasson can keep the fight in her preferred striking range or whether Mesquita can turn the contest into a grappling battle.

Experience versus an undefeated record

At 35, Macy Chiasson has accumulated considerable experience against established opposition in the UFC's women's bantamweight division. Her professional record stands at 11 wins and six defeats, with eight victories coming inside the UFC. Her finishing ability is particularly noteworthy: she has three knockout victories and two submission wins in the organisation, alongside three victories by decision.

Chiasson's recent career has featured several demanding encounters with experienced opponents. Her victories over Mayra Bueno Silva and Pannie Kianzad demonstrated her ability to combine physical strength with effective finishing techniques. However, her latest appearances have also highlighted the challenges of maintaining consistency against high-level competition. Her experience in three-round contests could prove important if Mesquita cannot secure an early finish.

Mesquita, meanwhile, enters the matchup with an unbeaten professional record of 8-0. Her rapid progress through the bantamweight division has attracted attention, particularly because of her ability to translate outstanding grappling credentials into successful MMA performances. She has already established herself as a dangerous finisher, with six submission victories and one knockout.

The grappling threat that changes everything

The most significant challenge for Chiasson is Mesquita's Brazilian jiu-jitsu background. A ten-time world champion and ADCC champion, the Brazilian possesses an exceptional foundation in ground fighting. Her achievements in grappling include victories over several recognised names, including Mackenzie Dern, Meisha Tate and Jennifer Maia.

Her UFC performances have reinforced that reputation. Against Irina Alekseeva in October 2025, Mesquita secured a rear-naked choke in the second round after establishing dominant positions on the ground. She subsequently submitted Montserrat Rendon with another rear-naked choke in March 2026, before finishing Melissa Mullins with an armbar in June.

Those performances reveal an important characteristic of her approach: Mesquita does not necessarily need extended periods to create a decisive grappling opportunity. She can transition between dominant positions, maintain control and attack submissions from different angles. Chiasson will need to be particularly careful when defending takedowns and escaping unfavourable positions.

Chiasson's physical advantages and striking options

Chiasson has a considerable physical advantage on paper. Standing 180.3 cm tall, with a reach of 182.9 cm, she is substantially taller and longer than Mesquita. This difference could become especially important during the opening exchanges, when maintaining distance and controlling the centre of the Octagon may help determine the direction of the fight.

Her striking statistics also suggest a fighter capable of producing consistent offensive activity. Chiasson lands an average of 3.21 significant strikes per minute, with an accuracy rate of 46%. She absorbs 2.76 significant strikes per minute, indicating that she is generally willing to engage rather than simply wait for counterattacking opportunities.

Her orthodox stance provides a familiar striking framework, while her experience in clinch exchanges and ground positions gives her several ways to approach the contest. Nevertheless, her takedown defence, recorded at 62%, could be tested severely against an opponent whose greatest strength is precisely the ability to establish and maintain dominant grappling positions.

For Chiasson, effective distance management will be essential. Her height and reach offer opportunities to use straight punches, combinations and movement to discourage Mesquita from closing the distance. Avoiding unnecessary clinches and remaining composed when defending takedowns could be just as important as landing significant strikes.

Mesquita's momentum and the challenge ahead

Mesquita's recent performances suggest a fighter growing increasingly comfortable in the professional MMA environment. Although her experience remains considerably more limited than Chiasson's, her three UFC victories have all demonstrated her ability to finish opponents through submission.

Training at American Top Team also places her in an established MMA environment, where she can continue developing the striking, defensive wrestling and tactical awareness needed to complement her exceptional grappling. Her association with current bantamweight champion Kayla Harrison adds another connection to the division's highest level of competition.

The biggest question surrounding Mesquita is how effectively she can handle an opponent with Chiasson's physical dimensions. Her previous submission victories demonstrate what she can achieve once she establishes control, but a taller opponent with a longer reach presents a different challenge. If she struggles to secure takedowns, she may have to spend more time exchanging strikes than her preferred approach would suggest.

What is at stake and who has the advantage?

This matchup offers both fighters an opportunity to strengthen their positions in a competitive women's bantamweight division. For Chiasson, a victory over an undefeated submission specialist would reinforce her credentials as an experienced contender and demonstrate that her physical advantages remain effective against dangerous grapplers. For Mesquita, defeating a seasoned UFC opponent would represent another significant step towards the division's elite.

The numerical assessment gives Mesquita a 66% chance of winning, compared with 34% for Chiasson. The estimate has remained almost unchanged from its initial assessment, reflecting a consistent advantage for the Brazilian. Mesquita is therefore more likely to emerge victorious, although Chiasson's reach, striking experience and ability to finish fights make her a credible opponent.

The likely deciding factor is where the fight takes place. If Chiasson can maintain distance, defend takedowns and accumulate damage through sustained striking, she has a realistic route to victory. If Mesquita gets the fight to the canvas and establishes her preferred positions, her submission skills could quickly become decisive.

Ultimately, this is a fascinating stylistic contest: an experienced, physically imposing striker against an undefeated grappling specialist. Mesquita enters with the stronger finishing momentum, but Chiasson's experience and physical advantages mean that the Brazilian will need to execute her game plan carefully.