Vieira vs. Chiasson

This is a market on whether Ketlen Vieira vs. Macy Chiasson will win their bout at UFC Fight Night: Blanchfield vs. Barber, scheduled for May 31, 2025. If Ketlen Vieira is declared the winner of this bout, this market will resolve to "Vieira." If Macy Chiasson is declared the winner of this bout, this market will resolve to "Chiasson." If this fight is declared a draw, or if for any reason the match is not scored, postponed after July 7, 2025, or canceled, this market will resolve 50-50. The Resolution source will be ESPN; however, a consensus of credible reporting may be used.