Cincinnati Open: Marta Kostyuk vs Sloane Stephens
Outcome: Completed Match. This is how the market settled on Polymarket.
Settled 18 Aug 2026
This market refers to the tennis match between Marta Kostyuk and Sloane Stephens in the Cincinnati Open, originally scheduled for August 18, 2026 at 10:00AM ET. This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Sloane Stephens. This market will resolve to 'Sloane Stephens' if Sloane Stephe…
This market settled on 18 August 2026. Over its lifetime it traded $190.8K across 15 Polymarket markets.
Probability over time
Holders and activity
Markets and probabilities
15 marketsThe percentage is the implied probability of the outcome, between 0% and 100%. For mutually-exclusive markets the sum trends to 100% (no vig). The ▲/▼ arrow shows the change over the selected window (1h/24h/7d/30d) in percentage points (pp). Click a market to see its top holders (with average entry price and position change) and the latest trades.