W50 Nanao: Rira Kosaka vs Natsuho Arakawa

This market refers to the tennis match between Rira Kosaka and Natsuho Arakawa in the W50 Nanao, Qualifying, originally scheduled for September 20, 2026 at 11:00PM ET. This market will resolve to 'Rira Kosaka' if Rira Kosaka advances against Natsuho Arakawa. This market will resolve to 'Natsuho Arakawa' if Natsuho Arakawa advances against Rira Kosaka. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 4, 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.