This market refers to the tennis match between Sonja Zhiyenbayeva and Anastasia Tikhonova in the W50 Austin, Main Draw, originally scheduled for October 19, 2026 at 2:00PM ET. This market will resolve to 'Sonja Zhiyenbayeva' if Sonja Zhiyenbayeva advances against Anastasia Tikhonova. This market will resolve to 'Anastasia Tikhonova' if Anastasia Tikhonova advances against Sonja Zhiyenbayeva. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 2, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.