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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Set 1 Winner | 0% | — | — | — · <1¢ | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Set Handicap +/-1.5 | 0% | — | — | — · <1¢ | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Match O/U 21.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Set 2 Winner | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Set 1 O/U 10.5 | 0% | — | — | — · <1¢ | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Total Sets: O/U 2.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Match O/U 22.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Match O/U 23.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| Completed Match | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Set 2 O/U 8.5 | 0% | — | — | — · <1¢ | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Set 1 O/U 8.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Set 2 O/U 9.5 | 0% | — | — | — · <1¢ | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Set 1 O/U 9.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Set 2 O/U 10.5 | 0% | — | — | — · <1¢ | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 65d | hurrican | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk>99¢ | $17,285 | −$17 −0.1% | — |
| 65d | Gumayusi98 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk>99¢ | $6,625 | −$7 −0.1% | — |
| 65d | whosay | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk>99¢ | $1,037 | −$1 −0.1% | — |
| 65d | spiced | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk>99¢ | $3,436 | −$3 −0.1% | — |
| 65d | PRppr | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk>99¢ | $1,445 | −$1 −0.1% | — |
| 65d | eokho | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk>99¢ | $4,996 | −$5 −0.1% | — |
| 65d | kkookkoo | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk>99¢ | $14,797 | −$15 −0.1% | — |
| 65d | neutralwave23 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk94¢ → 100¢ | $1,300 | −$83 −6.4% | — |
| 65d | PRppr | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk95¢ → 100¢ | $1,374 | +$72 +5.3% | 4 |
| 65d | Gumayusi98 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk95¢ → 100¢ | $6,300 | +$332 +5.3% | 4 |
| 65d | jtwyslljy | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk94¢ → 100¢ | $4,700 | −$300 −6.4% | — |
| 65d |  RN1 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk92¢ → 100¢ | $9,954 | +$866 +8.7% | 5 |
| 65d | Fnfjfiwoc2 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk86¢ → 100¢ | $1,087 | −$177 −16% | — |
| 65d | swisstony3 fills | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk81¢ → 100¢ | $13,952 | +$3,334 +24% | 5 |
| 65d | TexMexTRex | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk93¢ → 100¢ | $7,000 | +$529 +7.6% | 4 |
| 65d | romanh31 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk91¢ → 100¢ | $3,438 | −$340 −9.9% | — |
| 65d | ssj3 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk91¢ → 100¢ | $2,988 | −$296 −9.9% | — |
| 65d | alaskabaked2 fills | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva46¢ → 0¢ | $8,064 | −$8,064 −100% | 6 |
| 65d | hurrican | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk83¢ → 100¢ | $14,341 | +$2,962 +21% | 5 |
| 65d | ssj3 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk67¢ → 100¢ | $2,200 | +$1,084 +49% | 6 |
| 65d |  0xwise | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva36¢ → 0¢ | $4,965 | −$4,965 −100% | 6 |
| 65d | Rash-Copying | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva32¢ → 0¢ | $5,000 | −$5,000 −100% | 6 |
| 65d | Rash-Copying2 fills | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMarta Kostyuk58¢ → 100¢ | $25,861 | −$18,583 −72% | — |
| 65d | eokho | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk60¢ → 100¢ | $3,001 | +$2,001 +67% | 6 |
| 65d | RebornAthena | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva43¢ → 0¢ | $1,500 | −$1,500 −100% | 6 |
| 65d | kkookkoo3 fills | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk46¢ → 100¢ | $6,764 | +$8,048 +119% | 6 |
| 65d | omnibus-076daa | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva46¢ → 0¢ | $9,099 | −$9,099 −100% | 6 |
| 65d |  laIaIalala | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk47¢ → 100¢ | $1,047 | +$1,180 +113% | 6 |
| 65d | Tobias1909 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva54¢ → 0¢ | $2,700 | −$2,700 −100% | 6 |
| 65d | eokho | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | SellMirra Andreeva66¢ → 0¢ | $3,721 | +$3,721 +100% | — |
| 65d | HomeRunHazard | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk27¢ → 100¢ | $2,632 | +$7,043 +268% | 6 |
| 65d | HomeRunHazard2 fills | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva74¢ → 0¢ | $14,056 | −$14,056 −100% | 6 |
| 65d | eokho | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva76¢ → 0¢ | $4,285 | −$4,285 −100% | 6 |
| 65d | beeemw | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva72¢ → 0¢ | $7,000 | −$7,000 −100% | 6 |
| 65d | Rash-Copying | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk27¢ → 100¢ | $12,000 | +$32,444 +270% | 6 |
| 65d | jtwyslljy | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk31¢ → 100¢ | $1,550 | +$3,450 +223% | 6 |
| 65d | swisstony | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva62¢ → 0¢ | $1,177 | −$1,177 −100% | 6 |
| 65d |  tradecraft | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva59¢ → 0¢ | $7,080 | −$7,080 −100% | 6 |
| 65d | ferrariChampions2026 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva Set 1 Winner | BuyAndreeva57¢ → 100¢ | $2,497 | +$1,919 +77% | 6 |
| 65d | danielwolfmorales3pddb6dl6 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk44¢ → 100¢ | $4,400 | +$5,600 +127% | 6 |
| 65d | JAMJAMJAM4 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva57¢ → 0¢ | $4,503 | −$4,503 −100% | 6 |
| 65d | colossus | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva56¢ → 0¢ | $8,000 | −$8,000 −100% | 6 |
| 65d | romanh31 | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMarta Kostyuk45¢ → 100¢ | $1,700 | +$2,078 +122% | 4 |
| 66d | AGUGava | Cincinnati Open: Marta Kostyuk vs Mirra Andreeva | BuyMirra Andreeva54¢ → 0¢ | $13,172 | −$13,172 −100% | 4 |
This market refers to the tennis match between Marta Kostyuk and Mirra Andreeva in the Cincinnati Open, originally scheduled for August 19, 2026 at 11:00AM ET. This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Mirra Andreeva. This market will resolve to 'Mirra Andreeva' if Mirra Andreeva advances against Marta Kostyuk. 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: Marta Kostyuk vs Mirra Andreeva means the market gives it about 100%.