As of October 24, 2026, 09:02 PM ET, Polymarket traders price Katerina Siniakova at 61.0% in WTA Tennis: Osaka, Japan Winner — $1.8K traded so far.
The leading outcome, Katerina Siniakova, is priced at 61.0%.
Price changes for the leading market — 24 hours: +38.5 pts.
Since October 18, 2026, Katerina Siniakova has traded between 6.5% and 22.5%. It opened at 6.5% and last traded at 22.5%.
Katerina Siniakova is favored at 61.0%.
| Outcome | Price | Implied probability | 24h change | Volume | Volume share |
|---|---|---|---|---|---|
| Katerina Siniakova | 61¢ | 61.0% | +38.5 pts | $11 | 0.6% |
| Ashlyn Krueger | 30¢ | 30.5% | +15.5 pts | $207 | 11.3% |
See the full live book for this market on Polymarket
The leading market's spread is 18¢ (bid 52¢ / ask 70¢) — a tighter spread means cheaper round-trip trading.
$1.8K has been traded on this event in total, $291 of it in the last 24 hours, across 23 markets.
This market is scheduled to end October 25, 2026, 11:59 PM ET.
The 2026 Osaka, Japan tennis tournament is scheduled for October 17–25, 2026. This market will resolve to the player that wins the 2026 Osaka, Japan Women’s Singles Tournament. If at any point it becomes impossible for a listed player to win the 2026 Osaka, Japan Women’s Singles Tournament per the rules of the tournament, the corresponding market will resolve to "No". If a player who is not listed wins the 2026 Osaka, Japan Women’s Singles Tournament, this market will resolve to "Other". If the 2026 Osaka, Japan Women’s Singles Tournament is cancelled, postponed after November 8, 2026, 11:59 PM ET, or there is otherwise no winner declared within that timeframe, this market will resolve to "Other". The primary resolution source will be official information from WTA (https://www.wtatennis.com/scores); however, a consensus of credible reporting may also be used.
Resolution source: https://www.wtatennis.com/scores
The largest current holder of the leading market holds 22 shares of Yes.
| Holder | Outcome held | Shares | Value at current price |
|---|---|---|---|
| Cuddly-Folder | Yes | 22 | $13 |
| 0xa5ef39c3… | No | 21 | $8 |
| Accurate-Decoder | No | 5 | $2 |
| Lighthearted-Relation | Yes | 4 | $2 |
| Time | Outcome | Side | Price | Size |
|---|---|---|---|---|
| Oct 24, 04:34 PM ET | Yes | SELL | 52.0% | $2 |
| Oct 24, 08:18 AM ET | Yes | BUY | 56.0% | $16 |
| Oct 24, 08:18 AM ET | Yes | BUY | 56.0% | $20 |
| Oct 24, 08:18 AM ET | Yes | BUY | 56.0% | $21 |
| Oct 24, 08:18 AM ET | Yes | BUY | 56.0% | $25 |
| Oct 24, 08:18 AM ET | Yes | BUY | 56.0% | $10 |
| Oct 24, 08:18 AM ET | Yes | BUY | 56.0% | $10 |
| Oct 24, 08:18 AM ET | Yes | BUY | 56.0% | $10 |
| Oct 23, 11:41 AM ET | Yes | BUY | 27.0% | $3 |
| Oct 19, 07:23 PM ET | Yes | SELL | 3.0% | $0 |
As of October 24, 2026, 08:45 PM ET, the leading outcome is Katerina Siniakova at 61.0%. Next is Ashlyn Krueger at 30.5%. See the live book on Polymarket: https://polymarket.com/event/wta-tournament-winner-2026-136230?via=bro
$1.8K in total volume, with $291 traded in the last 24 hours across 23 markets.
The market is scheduled to end October 25, 2026, 11:59 PM ET. It resolves based on https://www.wtatennis.com/scores.
Katerina Siniakova, priced at 61.0% as of October 24, 2026, 08:45 PM ET. Prices are implied probabilities backed by real-money trading.
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