Katerina Siniakova vs Peyton Stearns

This market refers to the tennis match between Katerina Siniakova and Peyton Stearns in the WTA Japan Women's Open, originally scheduled for October 19, 2026 at 01:00 UTC. This market will resolve to 'Katerina Siniakova' if Katerina Siniakova advances against Peyton Stearns. This market will resolve to 'Peyton Stearns' if Peyton Stearns advances against Katerina Siniakova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 2, 2026, 23:59 UTC (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.