90% winner adds to Mayo position

This market refers to the tennis match between Kaylan Bigun and Aidan Mayo in the Fort Worth, originally scheduled for October 21, 2026 at 11:00AM ET. This market will resolve to 'Kaylan Bigun' if Kaylan Bigun advances against Aidan Mayo. This market will resolve to 'Aidan Mayo' if Aidan Mayo advances against Kaylan Bigun. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 4, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.