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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | 100% | — | — | >99¢ · 100¢ (<1¢) | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Match O/U 21.5 | 50% | — | — | 49¢ · 51¢ (2¢) | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Set Handicap +/-1.5 | 0% | — | — | — · <1¢ | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Game Spread +/-1.5 | 50% | — | — | 49¢ · 50¢ (1¢) | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Set 1 Winner | 100% | — | — | >99¢ · 100¢ (<1¢) | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Set 2 Winner | 50% | — | — | 50¢ · 51¢ (1¢) | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Set 1 O/U 8.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Set 1 O/U 9.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Total Sets: O/U 2.5 | 50% | — | — | 50¢ · 51¢ (1¢) | — | in 4d |
| Completed Match | 0% | −52 pts | — | — · <1¢ | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Set 1 O/U 10.5 | 0% | — | — | — · <1¢ | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Set 2 O/U 8.5 | 50% | — | — | — · 51¢ | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Set 2 O/U 9.5 | 50% | — | — | — · 100¢ | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Set 2 O/U 10.5 | 50% | — | — | 47¢ · 100¢ (53¢) | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Match O/U 22.5 | 50% | — | — | — · 100¢ | — | in 4d |
| Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk Match O/U 23.5 | 50% | — | — | — · 100¢ | — | in 4d |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 3d | Kkunn | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | SellEkaterina Alexandrova>99¢ | $26,973 | −$27 −0.1% | — |
| 3d | adaio1313 | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | SellEkaterina Alexandrova>99¢ | $3,115 | −$3 −0.1% | — |
| 3d | alaskabaked | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | SellEkaterina Alexandrova>99¢ | $6,819 | −$7 −0.1% | — |
| 3d | realmadrid090 | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | SellEkaterina Alexandrova>99¢ | $1,360 | −$1 −0.1% | — |
| 3d | eokho | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | SellEkaterina Alexandrova>99¢ | $1,542 | −$2 −0.1% | — |
| 3d | yesmate2 fills | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyEkaterina Alexandrova79¢ → 100¢ | $7,202 | +$1,901 +26% | 5 |
| 3d | ferrariChampions20265 fills | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyMarta Kostyuk20¢ → 0¢ | $28,371 | −$28,371 −100% | 6 |
| 3d | 01258787xy48487484545122 | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyEkaterina Alexandrova78¢ → 100¢ | $2,838 | +$807 +28% | 5 |
| 3d | dmoralez2 fills | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyEkaterina Alexandrova63¢ → 100¢ | $2,119 | +$1,231 +58% | 6 |
| 3d | UpTheBlues5 fills | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyEkaterina Alexandrova71¢ → 100¢ | $14,711 | +$5,954 +40% | 6 |
| 3d | realmadrid090 | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyEkaterina Alexandrova75¢ → 100¢ | $1,021 | +$340 +33% | 6 |
| 3d | eokho | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyEkaterina Alexandrova68¢ → 100¢ | $1,050 | +$494 +47% | 6 |
| 3d | alaskabaked | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyEkaterina Alexandrova59¢ → 100¢ | $4,027 | +$2,799 +69% | 6 |
| 3d | 0xd6f9…e95d | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | SellMarta Kostyuk45¢ → 0¢ | $2,002 | +$2,002 +100% | — |
| 3d |  tradecraft | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyEkaterina Alexandrova54¢ → 100¢ | $2,036 | +$1,735 +85% | 6 |
| 3d |  fRibrenlc | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyEkaterina Alexandrova50¢ → 100¢ | $1,004 | +$1,004 +100% | 6 |
| 3d | adaio1313 | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyEkaterina Alexandrova47¢ → 100¢ | $1,453 | +$1,665 +115% | 6 |
| 3d | Kkunn2 fills | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyEkaterina Alexandrova42¢ → 100¢ | $11,290 | +$15,710 +139% | 4 |
| 3d | 0xd6f9…e95d | Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk | BuyMarta Kostyuk61¢ → 0¢ | $2,693 | −$2,693 −100% | 6 |
This market refers to the tennis match between Ekaterina Alexandrova and Marta Kostyuk in the Ningbo Open, originally scheduled for October 21, 2026 at 7:00AM ET. This market will resolve to 'Ekaterina Alexandrova' if Ekaterina Alexandrova advances against Marta Kostyuk. This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Ekaterina Alexandrova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 4, 2026, 11:59 PM ET (14 days after the scheduled start), 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 Ningbo Open: Ekaterina Alexandrova vs Marta Kostyuk means the market gives it about 100%.