This market refers to the tennis match between Coco Gauff and Marta Kostyuk in the Cincinnati Open, originally scheduled for August 21, 2026 at 11:00AM ET.
This market will resolve to 'Coco Gauff' if Coco Gauff advances against Marta Kostyuk.
This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Coco Gauff.
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 resolve to 50-50.
If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.
Cincinnati Open: Coco Gauff vs Marta Kostyuk
WTA

Marta Kostyuk
0-0
–
vs
22/08 00:30
–

Coco Gauff
0-0
Game context
Coco Gauff enters this WTA 1000 Cincinnati Open quarterfinal on hard courts as the higher-ranked player (No. 4) with a 34-13 season record, including a Wimbledon semifinal run and strong recent form marked by comebacks and straight-set victories. Marta Kostyuk, ranked No. 11 with a 29-7 mark and titles in Madrid and Rouen, has surged into the matchup after three straight Cincinnati wins capped by an upset of Mirra Andreeva. Gauff holds the head-to-head edge historically, but Kostyuk’s aggressive baseline game and momentum on the surface create a competitive dynamic where serve pressure, return consistency, and handling of high-stakes rallies will determine the outcome.
Moneyline
$23.1K Vol.Match Completed
Set Total
$63 Vol.Cincinnati Open: Coco Gauff vs Marta Kostyuk Total Sets: O/U 2.5
Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 2 O/U 8.5
Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 2 O/U 9.5
Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 2 O/U 10.5
Total Games
$27 Vol.Cincinnati Open: Coco Gauff vs Marta Kostyuk Match O/U 21.5
Cincinnati Open: Coco Gauff vs Marta Kostyuk Match O/U 22.5
Cincinnati Open: Coco Gauff vs Marta Kostyuk Match O/U 23.5
1st Set Winner
$5 Vol.Set Winner
1st Set Total
Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 1 O/U 8.5
Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 1 O/U 9.5
Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 1 O/U 10.5
Set Handicap
$28 Vol.Cincinnati Open: Coco Gauff vs Marta Kostyuk Set Handicap +/-1.5
Cincinnati Open: Coco Gauff vs Marta Kostyuk Set Handicap +/-1.5
Resolution Source: www.wtatennis.com
Odds & FAQ
What are the current odds for Cincinnati Open: Coco Gauff vs Marta Kostyuk?
No runaway leader here - Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 1 O/U 8.5 at 61% versus Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 1 Winner at 56%. Traders are split, so watch the live prices.
What do traders predict for Cincinnati Open: Coco Gauff vs Marta Kostyuk?
At 61% implied for Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 1 O/U 8.5, the market isn't committing. Expect these numbers to move as the picture develops.
When does the Cincinnati Open: Coco Gauff vs Marta Kostyuk market resolve?
Mark 28 Aug 2026 (8 days left): that's when this market is due to resolve, following Polymarket's published criteria once the result is verified.
How much money is trading on Cincinnati Open: Coco Gauff vs Marta Kostyuk?
$8.3M in total volume has traded here. Deeper markets like this tend to price events more sharply.
How can I trade Cincinnati Open: Coco Gauff vs Marta Kostyuk on Polymarket?
You can watch the odds move here in real time and trade the market directly on Polymarket. As always, prediction trading carries real risk.
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