Market is split — US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Match O/U 21.5 at 56%. High uncertainty = high risk/reward opportunity.
| # | Outcome | Probability | If Right | Volume |
|---|---|---|---|---|
| 1 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Match O/U 21.5 | 56% | +77% | - |
| 2 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Set 1 O/U 9.5 | 56% | +79% | - |
| 3 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori | 52% | +90% | $10K |
| 4 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Set 1 Winner | 51% | +96% | - |
| 5 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Set 2 Winner | 51% | +96% | - |
| 6 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Set 1 O/U 8.5 | 50% | +98% | - |
| 7 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Match O/U 22.5 | 50% | +98% | - |
| 8 | Completed Match | 50% | +100% | - |
| 9 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Set 2 O/U 8.5 | 50% | +100% | - |
| 10 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Set 2 O/U 9.5 | 50% | +100% | - |
| 11 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Set 1 O/U 10.5 | 50% | +100% | - |
| 12 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Set 2 O/U 10.5 | 50% | +100% | - |
| 13 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Match O/U 23.5 | 46% | +120% | - |
| 14 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Total Sets: O/U 2.5 | 42% | +141% | - |
| 15 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Game Spread +/-1.5 | 40% | +147% | $2K |
| 16 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Set Handicap +/-1.5 | 30% | +228% | - |
| 17 | US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Set Handicap +/-1.5 BEST VALUE | 28% | +264% | - |
Real-money prediction market · Trade with confidence
This market refers to the tennis match between Sebastian Ofner and Kei Nishikori in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to...
This prediction market tracks whether US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori will occur, with $13K 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 is closely contested, with US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Match O/U 21.5 leading at just 56%. This near-even split signals high uncertainty among traders, creating potential value opportunities for those with strong conviction based on their own analysis of the underlying factors.
Trading activity is exceptionally high, with $13K 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 2026-09-01. 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 Aug 24, 2026 at 23:55 UTC, the leading outcome is US Open, Qualification ATP: Sebastian Ofner vs Kei Nishikori Match O/U 21.5 at 56% probability, with $13K in total trading volume on Polymarket.
What Are Prediction Markets? · How to Trade · Odds Calculator · Compare Platforms