Loading your workspacePreparing the page and its market data.
Polymarket · SportsClosed
Loading the chart…
| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns | 100% | +44 pts | — | >99¢ · 100¢ (<1¢) | — | in 1d |
| Completed Match | 0% | −55 pts | — | — · <1¢ | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Match O/U 21.5 | 100% | +49 pts | — | >99¢ · 100¢ (<1¢) | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Total Sets: O/U 2.5 | 100% | +60 pts | — | >99¢ · 100¢ (<1¢) | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 2 Winner | 0% | −53 pts | — | — · <1¢ | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 1 Winner | 100% | +46 pts | — | >99¢ · 100¢ (<1¢) | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Game Spread +/-1.5 | 50% | −1 pts | — | 49¢ · 51¢ (2¢) | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 1 O/U 10.5 | 0% | −24 pts | — | — · <1¢ | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Match O/U 23.5 | 50% | +10 pts | — | 49¢ · 51¢ (2¢) | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set Handicap +/-1.5 | 0% | −35 pts | — | — · <1¢ | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 1 O/U 8.5 | 100% | +29 pts | — | >99¢ · 100¢ (<1¢) | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 1 O/U 9.5 | 100% | +52 pts | — | >99¢ · 100¢ (<1¢) | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 2 O/U 8.5 | 0% | −50 pts | — | — · <1¢ | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 2 O/U 9.5 | 0% | −50 pts | — | — · <1¢ | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 2 O/U 10.5 | 0% | −50 pts | — | — · <1¢ | — | in 1d |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Match O/U 22.5 | 50% | +6 pts | — | 49¢ · 51¢ (2¢) | — | in 1d |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 4d | liuhaizhou | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | SellKaterina Siniakova>99¢ | $2,738 | −$3 −0.1% | — |
| 4d | Doomsday77 | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | SellKaterina Siniakova>99¢ | $3,133 | −$3 −0.1% | — |
| 4d | muchova19 | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | SellKaterina Siniakova>99¢ | $3,155 | −$3 −0.1% | — |
| 4d | 01258787xy484874845451223 fills | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | BuyKaterina Siniakova90¢ → 100¢ | $59,184 | +$6,368 +11% | 5 |
| 4d | muchova19 | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | BuyKaterina Siniakova95¢ → 100¢ | $3,000 | +$158 +5.3% | 4 |
| 4d | UpTheBlues6 fills | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | BuyKaterina Siniakova52¢ → 100¢ | $11,954 | +$11,196 +94% | 6 |
| 4d |  12xmrbolt | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | BuyKaterina Siniakova91¢ → 100¢ | $2,000 | +$198 +9.9% | 5 |
| 4d | dmoralez | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | SellKaterina Siniakova75¢ → 100¢ | $2,245 | −$757 −34% | — |
| 4d | dmoralez2 fills | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | BuyKaterina Siniakova70¢ → 100¢ | $2,114 | +$928 +44% | 6 |
| 4d | Scornful-Gym-Retreat | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | BuyPeyton Stearns32¢ → 0¢ | $1,899 | −$1,899 −100% | 6 |
| 4d | omnibus-076daa | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | BuyKaterina Siniakova41¢ → 100¢ | $3,657 | +$5,262 +144% | 6 |
| 4d | Substantial-Service | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | BuyKaterina Siniakova45¢ → 100¢ | $1,747 | +$2,136 +122% | 6 |
| 4d | kkookkoo | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | BuyPeyton Stearns55¢ → 0¢ | $7,888 | −$7,888 −100% | 6 |
| 4d | HBAFlover98 | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | BuyPeyton Stearns55¢ → 0¢ | $8,250 | −$8,250 −100% | 6 |
| 4d | liuhaizhou | Japan Women's Open: Katerina Siniakova vs Peyton Stearns | BuyKaterina Siniakova74¢ → 100¢ | $2,028 | +$713 +35% | 6 |
GeepaP2,000 sharesThis market refers to the tennis match between Katerina Siniakova and Peyton Stearns in the Japan Women's Open, originally scheduled for October 18, 2026 at 9:00PM ET. This market will resolve to 'Katerina Siniakova' if Katerina Siniakova advances against Peyton Stearns. This market will resolve to 'Peyton Stearns' if Peyton Stearns advances against Katerina Siniakova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 1, 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 Japan Women's Open: Katerina Siniakova vs Peyton Stearns means the market gives it about 100%.