Cori Gauff vs Marta Kostyuk

This market refers to the tennis match between Cori Gauff and Marta Kostyuk in the WTA Cincinnati Open, originally scheduled for August 21, 2026 at 15:00 UTC. This market will resolve to 'Cori Gauff' if Cori Gauff advances against Marta Kostyuk. This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Cori Gauff. 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.