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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| Cincinnati Open: Coco Gauff vs Marta Kostyuk | 100% | +43 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Total Sets: O/U 2.5 | 0% | −41 pts | — | — · <1¢ | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 1 Winner | 100% | +44 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Set Handicap +/-1.5 | 100% | +65 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Set Handicap +/-1.5 | 0% | −24 pts | — | — · <1¢ | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 2 Winner | 100% | +45 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Match O/U 21.5 | 0% | −53 pts | — | — · <1¢ | — | ended |
| Completed Match | 100% | +50 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Match O/U 22.5 | 0% | −47 pts | — | — · <1¢ | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 1 O/U 8.5 | 0% | −61 pts | — | — · <1¢ | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 2 O/U 8.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 2 O/U 9.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 1 O/U 9.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Match O/U 23.5 | 0% | −44 pts | — | — · <1¢ | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 1 O/U 10.5 | 0% | −37 pts | — | — · <1¢ | — | ended |
| Cincinnati Open: Coco Gauff vs Marta Kostyuk Set 2 O/U 10.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 56d | 0xc918…7411 | Cincinnati Open: Coco Gauff vs Marta Kostyuk | SellCoco Gauff>99¢ | $1,024 | −$1 −0.1% | — |
| 56d | swisstony2 fills | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff97¢ → 100¢ | $12,473 | +$335 +2.7% | 4 |
| 56d | BunCaCham | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff97¢ → 100¢ | $2,164 | +$58 +2.7% | 4 |
| 56d |  hd7772 fills | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff97¢ → 100¢ | $29,048 | +$1,002 +3.4% | 4 |
| 56d | romanh31 | Cincinnati Open: Coco Gauff vs Marta Kostyuk | SellCoco Gauff93¢ → 100¢ | $3,331 | −$241 −7.2% | — |
| 56d | HomeRunHazard2 fills | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyMarta Kostyuk19¢ → 0¢ | $3,279 | −$3,279 −100% | 6 |
| 56d | tennischamp2 fills | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff82¢ → 100¢ | $26,694 | +$5,735 +21% | 5 |
| 56d | ferrariChampions20262 fills | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyMarta Kostyuk20¢ → 0¢ | $6,665 | −$6,665 −100% | 6 |
| 56d | kahe | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff82¢ → 100¢ | $22,000 | +$4,670 +21% | 5 |
| 56d |  0xwise | Cincinnati Open: Coco Gauff vs Marta Kostyuk | SellMarta Kostyuk18¢ → 0¢ | $2,262 | +$2,262 +100% | — |
| 56d | 0xwise | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyMarta Kostyuk20¢ → 0¢ | $2,513 | −$2,513 −100% | 6 |
| 56d | unknownaura | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff80¢ → 100¢ | $1,514 | +$378 +25% | 5 |
| 56d | kkookkoo | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyMarta Kostyuk20¢ → 0¢ | $1,984 | −$1,984 −100% | 6 |
| 56d | konohamar | Cincinnati Open: Coco Gauff vs Marta Kostyuk | SellCoco Gauff78¢ → 100¢ | $1,005 | −$283 −28% | — |
| 56d | Exalted-Evocation | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff75¢ → 100¢ | $2,100 | +$700 +33% | 6 |
| 56d | 0xa0f2…18487 fills | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff61¢ → 100¢ | $8,327 | +$5,358 +64% | 6 |
| 56d | 0xe98c…8792 | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyMarta Kostyuk40¢ → 0¢ | $1,138 | −$1,138 −100% | 6 |
| 56d | 3903 | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyMarta Kostyuk42¢ → 0¢ | $4,667 | −$4,667 −100% | 6 |
| 56d | alaskabaked | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff58¢ → 100¢ | $13,684 | +$9,909 +72% | 6 |
| 56d | 0xf3a1…bf4b2 fills | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff57¢ → 100¢ | $6,705 | +$4,969 +74% | 6 |
| 56d | Substantial-Service | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyMarta Kostyuk43¢ → 0¢ | $6,947 | −$6,947 −100% | 6 |
| 56d | Mon676 | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff57¢ → 100¢ | $1,480 | +$1,098 +74% | 6 |
| 56d | omnibus-076daa | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff57¢ → 100¢ | $6,388 | +$4,819 +75% | 6 |
| 56d | NiNo999 | Cincinnati Open: Coco Gauff vs Marta Kostyuk Total Sets: O/U 2.5 | BuyOver 2.543¢ → 0¢ | $1,500 | −$1,500 −100% | 6 |
| 56d | NiNo999 | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff57¢ → 100¢ | $3,500 | +$2,640 +75% | 6 |
| 56d | cappytrader | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff56¢ → 100¢ | $3,558 | +$2,795 +79% | 6 |
| 56d | RDXR | Cincinnati Open: Coco Gauff vs Marta Kostyuk | SellCoco Gauff55¢ → 100¢ | $9,459 | −$7,740 −82% | — |
| 56d | RDXR2 fills | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff57¢ → 100¢ | $9,719 | +$7,480 +77% | 4 |
| 56d | romanh31 | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff56¢ → 100¢ | $2,000 | +$1,571 +79% | 6 |
| 56d | danielwolfmorales3pddb6dl62 fills | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyMarta Kostyuk44¢ → 0¢ | $6,200 | −$6,200 −100% | 6 |
| 56d | Substantial-Service | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff55¢ → 100¢ | $8,746 | +$7,156 +82% | 6 |
| 56d | AV23IUa | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyMarta Kostyuk45¢ → 0¢ | $10,071 | −$10,071 −100% | 6 |
| 56d | hampan | Cincinnati Open: Coco Gauff vs Marta Kostyuk Set Handicap +/-1.5 | BuyGauff76¢ → 100¢ | $1,500 | +$474 +32% | 6 |
| 56d | comon119 | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyMarta Kostyuk44¢ → 0¢ | $2,200 | −$2,200 −100% | 6 |
| 57d | Dual-Criticism | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyMarta Kostyuk43¢ → 0¢ | $2,480 | −$2,480 −100% | 4 |
| 57d | AGUGava2 fills | Cincinnati Open: Coco Gauff vs Marta Kostyuk | BuyCoco Gauff57¢ → 100¢ | $13,059 | +$9,852 +75% | 4 |
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.
Sources: Polymarket's Gamma API, its CLOB price history and its Data API, read every two minutes. Prices are each outcome's Yes price, which is the market's probability: 100¢ for Cincinnati Open: Coco Gauff vs Marta Kostyuk means the market gives it about 100%.