This market refers to the tennis match between Zsombor Piros and Christopher O'Connell in the US Open, Qualification ATP, originally scheduled for August 27, 2026 at 11:00AM ET. This market will resolve to 'Zsombor Piros' if Zsombor Piros advances against Christopher O'Connell. This market will resolve to 'Christopher O'Connell' if Christopher O'Connell advances against Zsombor Piros. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 10, 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.