This market refers to the tennis match between Takuya Kumasaka and Martin Borisiouk in the Phan Thiet 3, Vietnam, Qualifying, originally scheduled for September 6, 2026 at 12:10AM ET. This market will resolve to 'Takuya Kumasaka' if Takuya Kumasaka advances against Martin Borisiouk. This market will resolve to 'Martin Borisiouk' if Martin Borisiouk advances against Takuya Kumasaka. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 20, 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.