Ketlen Vieira vs Macy Chiasson — Fight recap

Ketlen Vieira defeated Macy Chiasson via unanimous decision after three rounds on May 31, 2025. Vieira controlled the fight through superior volume and octagon positioning, landing 28 significant strikes at 43% accuracy while accumulating 10:06 of control time against Chiasson's negligible 0:33.

Chiasson, despite a higher striking efficiency at 51% accuracy on 22 significant strikes, failed to convert any of her four takedown attempts and couldn't establish sustained pressure. The striking exchanges favored Vieira's consistency, particularly in head strikes where she connected on 25 of 60 attempts compared to Chiasson's 8 of 25.

Neither fighter scored knockdowns or submission attempts, with the bout decided entirely on striking volume and cage control. The unanimous decision solidifies Vieira's standing in the women's bantamweight division and raises questions about Chiasson's path forward after the loss.