As of October 24, 2026, 06:57 PM ET, Polymarket traders price Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 O/U 10.5: Under at 75.0% in Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova — $10.0K traded so far.
Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 O/U 10.5: Under is favored at 75.0%.
| Outcome | Price | Implied probability | 24h change | Volume | Volume share |
|---|---|---|---|---|---|
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 O/U 10.5: Under | 75¢ | 75.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set Handicap +/-1.5: Katerina Siniakova | 74¢ | 74.5% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 O/U 8.5: Over | 72¢ | 72.5% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set Handicap +/-1.5: Ashlyn Krueger | 66¢ | 66.5% | — | $205 | 2.1% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Total Sets: O/U 2.5: Under 2.5 | 58¢ | 58.0% | — | $137 | 1.4% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova: Katerina Siniakova | 56¢ | 56.5% | — | $9.6K | 96.5% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Match O/U 23.5: Under | 56¢ | 56.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Match O/U 21.5: Over | 56¢ | 55.5% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 2 Winner: Katerina Siniakova | 55¢ | 54.5% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 Winner: Katerina Siniakova | 53¢ | 53.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Game Spread +/-0.5: Katerina Siniakova | 53¢ | 53.0% | — | $8 | 0.1% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 2 O/U 8.5: Under | 52¢ | 52.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 2 O/U 9.5: Under | 52¢ | 52.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 2 O/U 10.5: Under | 52¢ | 52.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Match O/U 22.5: Under | 52¢ | 51.5% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 O/U 9.5: Over | 51¢ | 51.0% | — | $0 | 0.0% |
| Completed Match | 49¢ | 49.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 O/U 9.5: Under | 49¢ | 49.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Match O/U 22.5: Over | 48¢ | 48.5% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 2 O/U 8.5: Over | 48¢ | 48.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 2 O/U 9.5: Over | 48¢ | 48.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 2 O/U 10.5: Over | 48¢ | 48.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 Winner: Ashlyn Krueger | 47¢ | 47.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Game Spread +/-0.5: Ashlyn Krueger | 47¢ | 47.0% | — | $8 | 0.1% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 2 Winner: Ashlyn Krueger | 46¢ | 45.5% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Match O/U 21.5: Under | 44¢ | 44.5% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Match O/U 23.5: Over | 44¢ | 44.0% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova: Ashlyn Krueger | 44¢ | 43.5% | — | $9.6K | 96.5% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Total Sets: O/U 2.5: Over 2.5 | 42¢ | 42.0% | — | $137 | 1.4% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set Handicap +/-1.5: Katerina Siniakova | 34¢ | 33.5% | — | $205 | 2.1% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 O/U 8.5: Under | 28¢ | 27.5% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set Handicap +/-1.5: Ashlyn Krueger | 26¢ | 25.5% | — | $0 | 0.0% |
| Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 O/U 10.5: Over | 25¢ | 25.0% | — | $0 | 0.0% |
See the full live book for this market on Polymarket
The leading market's spread is 2¢ (bid 24¢ / ask 26¢) — a tighter spread means cheaper round-trip trading.
$10.0K has been traded on this event in total, $10.0K of it in the last 24 hours, across 17 markets.
This market is scheduled to end November 01, 2026, 12:30 AM ET.
This market refers to the tennis match between Ashlyn Krueger and Katerina Siniakova in the Japan Women's Open, originally scheduled for October 25, 2026 at 12:30AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game. If the match is postponed or suspended, this market will remain open until the first set has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before the first set is completed, or if the first set has not been completed by November 8, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the set played according to the match format published by the tournament organizer for that round, including whether the set is decided by a tiebreak. For example, for a line of 9.5, if play stops with the first set at 5-4, completing the set would have required at least 1 additional game, resulting in at least 10 games played, so "Over" would resolve as the winning outcome. … (condensed)
Resolution source: https://www.wtatennis.com/scores
| Time | Outcome | Side | Price | Size |
|---|---|---|---|---|
| Oct 24, 06:19 PM ET | Under 2.5 | BUY | 59.0% | $78 |
| Oct 24, 06:13 PM ET | Katerina Siniakova | BUY | 34.0% | $10 |
| Oct 24, 06:08 PM ET | Ashlyn Krueger | BUY | 67.0% | $20 |
| Oct 24, 06:00 PM ET | Ashlyn Krueger | BUY | 44.0% | $1 |
| Oct 24, 05:58 PM ET | Ashlyn Krueger | BUY | 44.0% | $25 |
| Oct 24, 05:47 PM ET | Katerina Siniakova | BUY | 35.0% | $10 |
| Oct 24, 05:47 PM ET | Katerina Siniakova | BUY | 34.1% | $40 |
| Oct 24, 05:46 PM ET | Katerina Siniakova | BUY | 57.0% | $100 |
| Oct 24, 05:28 PM ET | Ashlyn Krueger | BUY | 44.0% | $2 |
| Oct 24, 05:28 PM ET | Katerina Siniakova | BUY | 57.0% | $2.4K |
As of October 24, 2026, 06:53 PM ET, the leading outcome is Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 O/U 10.5: Under at 75.0%. Next is Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set Handicap +/-1.5: Katerina Siniakova at 74.5%. See the live book on Polymarket: https://polymarket.com/event/wta-krueger-siniako-2026-10-25?via=bro
$10.0K in total volume, with $10.0K traded in the last 24 hours across 17 markets.
The market is scheduled to end November 01, 2026, 12:30 AM ET. It resolves based on https://www.wtatennis.com/scores.
Japan Women's Open: Ashlyn Krueger vs Katerina Siniakova Set 1 O/U 10.5: Under, priced at 75.0% as of October 24, 2026, 06:53 PM ET. Prices are implied probabilities backed by real-money trading.
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