The market strongly favors Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii at 100%. High confidence — but lower potential returns.
| # | Outcome | Probability | If Right | Volume |
|---|---|---|---|---|
| 1 | Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii | 100% | - | $54K |
| 2 | Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii Set 1 Winner | 100% | - | $486 |
| 3 | Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii Set 2 Winner | 100% | - | $886 |
| 4 | Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii Set 1 O/U 8.5 | 100% | - | - |
| 5 | Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii Set 1 O/U 9.5 | 100% | - | - |
| 6 | Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii Set 2 O/U 8.5 | 100% | - | - |
| 7 | Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii Set 2 O/U 9.5 | 100% | - | - |
| 8 | Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii Set 2 O/U 10.5 | 100% | - | - |
| 9 | Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii Match O/U 21.5 | 100% | - | $76 |
| 10 | Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii Set Handicap +/-1.5 | 100% | - | - |
| 11 | Completed Match BEST VALUE | 100% | +0% | $5K |
Real-money prediction market · Trade with confidence
This market refers to the tennis match between Mary Stoiana and Sayaka Ishii in the Japan Women's Open, Qualification, originally scheduled for October 17, 2026 at 10:30PM ET. This market will resolv...
This prediction market tracks whether Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii will occur, with $60K in total trading volume reflecting significant trader interest. Prediction markets aggregate the collective intelligence of participants who stake real money on outcomes, making them one of the most reliable forecasting tools available for events driven by team performance data, historical matchups, and real-time injury reports.
The market shows strong consensus: Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii is priced at 100%, indicating traders overwhelmingly expect this outcome. At this probability level, the potential return on a correct bet is relatively low, but contrarian positions carry significant upside if the consensus proves wrong.
Trading activity is exceptionally high, with $60K traded in the last 24 hours alone (100% of total volume). This surge often indicates breaking news, a key deadline approaching, or a significant shift in market sentiment.
This market is scheduled to resolve by 2026-10-25. As the resolution date approaches, expect increased trading activity and tighter probability estimates. Historical data shows that prediction market accuracy improves significantly in the final days before resolution.
As of Oct 18, 2026 at 05:25 UTC, the leading outcome is Japan Women's Open, Qualification: Mary Stoiana vs Sayaka Ishii at 100% probability, with $60K in total trading volume on Polymarket.
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