Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii

This market refers to the tennis match between Mary Stoiana and Sayaka Ishii in the Japan Women's Open, Qualification, originally scheduled for October 17, 2026 at 10:30PM ET. This market will resolve to 'Mary Stoiana' if Mary Stoiana advances against Sayaka Ishii. This market will resolve to 'Sayaka Ishii' if Sayaka Ishii advances against Mary Stoiana. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 31, 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.