This market refers to the tennis match between Coco Gauff and Elena Rybakina in the US Open WTA, originally scheduled for September 10, 2026 at 8:30PM ET. This market will resolve to 'Coco Gauff' if Coco Gauff advances against Elena Rybakina. This market will resolve to 'Elena Rybakina' if Elena Rybakina advances against Coco Gauff. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 24, 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 WTA Tour. A consensus of credible reporting may also be used.