Naomi Osaka vs Katerina Siniakova

This market refers to the tennis match between Naomi Osaka and Katerina Siniakova in the WTA US Open, originally scheduled for September 2, 2026 at 15:00 UTC. This market will resolve to 'Naomi Osaka' if Naomi Osaka advances against Katerina Siniakova. This market will resolve to 'Katerina Siniakova' if Katerina Siniakova advances against Naomi Osaka. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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.