Japan Women's Open: Katerina Siniakova vs Peyton Stearns Odds
This market has resolved: Katerina Siniakova. Final prices are below.
| Outcome | Chance | Odds | 24h |
|---|---|---|---|
| Katerina Siniakova vs Peyton Stearns | 100% | — | ▲ 44 |
| Completed Match | 0% | — | ▼ 55 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 1 Winner | 100% | — | ▲ 46 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 2 Winner | 0% | — | ▼ 53 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Total Sets: O/U 2.5 | 100% | — | ▲ 60 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 1 O/U 8.5 | 100% | — | ▲ 29 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 1 O/U 9.5 | 100% | — | ▲ 52 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 1 O/U 10.5 | 0% | — | ▼ 24 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 2 O/U 8.5 | 0% | — | ▼ 50 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 2 O/U 9.5 | 0% | — | ▼ 50 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set 2 O/U 10.5 | 0% | — | ▼ 50 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Match O/U 21.5 | 100% | — | ▲ 49 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Match O/U 22.5 | 50% | -100 | ▲ 6 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Match O/U 23.5 | 50% | -100 | ▲ 10 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Set Handicap +/-1.5 | 0% | — | ▼ 35 |
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns Game Spread +/-1.5 | 50% | -100 | ▼ 0 |
Price history
Resolution rules
This 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.
Source: Polymarket. The venue's rules are final.
FAQ
How are prediction market odds calculated?
Each contract pays $1 if the outcome happens and $0 if it doesn't, so its price is the market's implied probability: a 60¢ contract means roughly a 60% chance. We show the last trade, or the midpoint between the best bid and ask when the order book is tight.
When does this market close?
Polymarket lists Oct 26, 2026 as the end date; this market has closed.
Where can I trade on Japan Women's Open: Katerina Siniakova vs Peyton Stearns?
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