TOTAL VOLUME:
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24H VOL:
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OPEN INTEREST:
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404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
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Polymarket:
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VS.
Kalshi:
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Closed: Sep 2, 3:10 PM EST
Kalshi
This market focuses on the outcome of a specific tennis match between Marta Kostyuk and Sloane Stephens at the 2026 US Open Women Singles Round Of 64. It tracks who will win the match after play has officially begun. The market accounts for potential match disruptions, ensuring fair resolution if the contest cannot proceed as scheduled.
If Marta Kostyuk wins the Kostyuk vs Stephens professional tennis match in the 2026 US Open Women Singles Round Of 64 after a ball has been played, then the market resolves to Yes. If Sloane Stephens wins the Kostyuk vs Stephens professional tennis match in the 2026 US Open Women Singles Round Of 64 after a ball has been played, then the market resolves to Yes.