This market refers to the tennis match between Quentin Halys and Roman Safiullin in the Hangzhou Open, originally scheduled for September 25, 2026 at 10:00PM ET. This market will resolve to 'Quentin Halys' if Quentin Halys advances against Roman Safiullin. This market will resolve to 'Roman Safiullin' if Roman Safiullin advances against Quentin Halys. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 9, 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.