Madrid Open: Marta Kostyuk vs Caty McNally

This market refers to the tennis match between Marta Kostyuk and Caty McNally in the Madrid Open, originally scheduled for April 27, 2026 at 5:00AM ET. This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Caty McNally. This market will resolve to 'Caty McNally' if Caty McNally advances against Marta Kostyuk. 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 res