
Resolved Katerina Siniakova on 23 Oct 2026.
The last price read before settlement had Katerina Siniakova at 70.5%. The Mary Stoiana side was at 33.5% at 22 Oct 2026, 12:00 UTC, the earliest read in hand. Before it settled, across 2 price reads from 22 Oct 2026, 12:00 UTC to 23 Oct 2026, 06:00 UTC, the highest read was 33.5% on 22 Oct 2026, 12:00 UTC and the lowest 29.5% on 23 Oct 2026, 06:00 UTC. $370.88K traded over the market's life.
76 wallets still hold shares. Winners redeem theirs after settlement, so what is left is mostly the losing side.
Polymarket record as of Oct 24, 7:56 AM UTC
6-hour closes of the Mary Stoiana price, Polymarket CLOB, 2 points, 22 Oct, 12:00 UTC – 23 Oct, 06:00 UTC, chart shows 26%–38%
| Observed | Mary Stoiana price |
|---|---|
| 22 Oct, 12:00 UTC | 33.5% |
| 23 Oct, 06:00 UTC | 29.5% |
Winners have redeemed their shares, so most of what is left is the losing side.
| Trader | Outcome | Shares |
|---|---|---|
| ferrariChampions2026 | Mary Stoiana | 48.96K |
| Kkunn | Mary Stoiana | 35K |
| Reliable-Giggle | Mary Stoiana | 7.7K |
| wingwingwin | Mary Stoiana | 2K |
Open a trader’s name to inspect the wallet’s available P&L, positions and recorded trades, with source dates and coverage. A large position alone does not establish a winning track record.
This market refers to the tennis match between Mary Stoiana and Katerina Siniakova in the Japan Women's Open, originally scheduled for October 23, 2026 at 1:30AM ET. This market will resolve to 'Mary Stoiana' if Mary Stoiana advances against Katerina Siniakova. This market will resolve to 'Katerina Siniakova' if Katerina Siniakova advances against Mary Stoiana. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 6, 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.
Official listing: polymarket.com/event/wta-stoiana-siniako-2026-10-23
| 1lovejump | Mary Stoiana | 1.99K |
| GongxifacaiRMB | Mary Stoiana | 1.03K |
| thestingsnake | Mary Stoiana | 971.52 |
| xpr | Mary Stoiana | 650 |
| clownly | Mary Stoiana | 600 |
| Quanttennis | Mary Stoiana | 514.24 |
New to prediction markets? How to read a market page