This market refers to the tennis match between Mayuka Aikawa and Karen Tsutsumi in the W50 Yokohama, Qualifying, originally scheduled for November 8, 2026 at 11:00PM ET. This market will resolve to 'Mayuka Aikawa' if Mayuka Aikawa advances against Karen Tsutsumi. This market will resolve to 'Karen Tsutsumi' if Karen Tsutsumi advances against Mayuka Aikawa. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 22, 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.