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Prediction market on polymarket_us. This market will settle to Yes if Marta Kostyuk wins the 2026 US Open women's singles championship scheduled for September 12, 2026. If the player does not compete, withdraws, or does not win for any reason, the market will settle to No. If the tournament is delayed, postponed, or suspended and not rescheduled to a date within two weeks of the originally scheduled date, the market will settle to the last fair market price. Outcome sourced from WTA.
Resolves: 9/26/2026.