Set 2 Winner: Kostyuk vs Stephens
BUY YES
- Cost
- 85.0¢
- Implied chance
- 85.0%
- Return if right
- 17.6%
- Spread cost
- 32%
If you put in $100
You get 117.6 shares at 85.0¢ each.
YES wins: $117.65 back, a profit of $17.65. YES loses: $0.00, and the whole $100 is gone.
The gap between buyers and sellers takes $8.14 of that profit. Without it you would make $25.79.
Assumes the whole order fills at this price. A large order eats into the book and averages worse.
Buy YES on Polymarket
BUY NO
- Cost
- 26.0¢
- Implied chance
- 26.0%
- Return if right
- 284.6%
- Spread cost
- 27%
If you put in $100
You get 384.6 shares at 26.0¢ each.
NO wins: $384.62 back, a profit of $284.62. NO loses: $0.00, and the whole $100 is gone.
The gap between buyers and sellers takes $103.19 of that profit. Without it you would make $387.80.
Assumes the whole order fills at this price. A large order eats into the book and averages worse.
Buy NO on Polymarket
- Cincinnati Open: Marta Kostyuk vs Sloane Stephens Set 2 Winner78.0%
- Cincinnati Open: Marta Kostyuk v…85.0%
- Cincinnati Open: Marta Kostyuk vs Sloane Stephens Set 1 Winner77.0%
- Cincinnati Open: Marta Kostyuk vs Sloane Stephens Total Sets: O/U 2.550.0%
- Completed Match50.0%
- Cincinnati Open: Marta Kostyuk vs Sloane Stephens Match O/U 23.549.5%
Latest: Aug 17, 07:21 AM4 further outcomes not shown
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Headlines are matched on the names in “Set 2 Winner: Kostyuk vs Stephens”. Nobody checks them by hand, so one may not be relevant. They also say nothing about whether the price has already moved on this news.
How this market resolves
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 “Kostyuk” if Marta Kostyuk wins set 2. It will resolve to “Stephens” if Sloane Stephens wins set 2. If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50. Resolution will be based on official WTA match statistics.
Source: https://www.wtatennis.com/scores
Other outcomes in Cincinnati Open: Marta Kostyuk vs Sloane Stephens
- Cincinnati Open: Marta Kostyuk vs Sloane Stephens
- Set 1 Winner: Kostyuk vs Stephens
- Marta Kostyuk vs. Sloane Stephens: Total Sets O/U 2.5
- Cincinnati Open: Completed Match: Marta Kostyuk vs Sloane Stephens
- Kostyuk vs. Stephens: Match O/U 23.5
- Kostyuk vs. Stephens: Set 2 Games O/U 8.5
- Kostyuk vs. Stephens: Set 2 Games O/U 9.5
- Kostyuk vs. Stephens: Match O/U 22.5
- Kostyuk vs. Stephens: Set 2 Games O/U 10.5
- Kostyuk vs. Stephens: Match O/U 21.5
- Kostyuk vs. Stephens: Set 1 Games O/U 8.5
- Kostyuk vs. Stephens: Set 1 Games O/U 9.5
- Kostyuk vs. Stephens: Set 1 Games O/U 10.5
- Set Handicap: Kostyuk (-1.5) vs Stephens (+1.5)