National Bank Open: Joao Fonseca vs Ben Shelton Match O/U 21.5 leads at 61%. Moderate consensus — room for value on contrarian bets.
| # | Outcome | Probability | If Right | Volume |
|---|---|---|---|---|
| 1 | National Bank Open: Joao Fonseca vs Ben Shelton Match O/U 21.5 | 61% | +64% | - |
| 2 | National Bank Open: Joao Fonseca vs Ben Shelton Match O/U 22.5 | 57% | +75% | $5 |
| 3 | National Bank Open: Joao Fonseca vs Ben Shelton Set 1 O/U 8.5 | 52% | +90% | - |
| 4 | National Bank Open: Joao Fonseca vs Ben Shelton Set 1 O/U 9.5 | 52% | +92% | - |
| 5 | Completed Match | 50% | +100% | - |
| 6 | National Bank Open: Joao Fonseca vs Ben Shelton Set 2 O/U 8.5 | 50% | +100% | - |
| 7 | National Bank Open: Joao Fonseca vs Ben Shelton Set 2 O/U 9.5 | 50% | +100% | - |
| 8 | National Bank Open: Joao Fonseca vs Ben Shelton Set 2 O/U 10.5 | 50% | +100% | - |
| 9 | National Bank Open: Joao Fonseca vs Ben Shelton Match O/U 23.5 | 49% | +104% | $20 |
| 10 | National Bank Open: Joao Fonseca vs Ben Shelton Set 1 Winner | 48% | +108% | $550 |
| 11 | National Bank Open: Joao Fonseca vs Ben Shelton Set 2 Winner | 48% | +111% | - |
| 12 | National Bank Open: Joao Fonseca vs Ben Shelton | 46% | +120% | $18K |
| 13 | National Bank Open: Joao Fonseca vs Ben Shelton Total Sets: O/U 2.5 | 43% | +133% | $177 |
| 14 | National Bank Open: Joao Fonseca vs Ben Shelton Set 1 O/U 10.5 | 42% | +135% | - |
| 15 | National Bank Open: Joao Fonseca vs Ben Shelton Set Handicap +/-1.5 BEST VALUE | 32% | +217% | $116 |
Real-money prediction market · Trade with confidence
This market refers to the tennis match between Joao Fonseca and Ben Shelton in the National Bank Open, originally scheduled for August 10, 2026 at 10:00AM ET. This market will resolve to 'Joao Fonsec...
This prediction market tracks whether National Bank Open: Joao Fonseca vs Ben Shelton will occur, with $19K 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.
Traders lean toward National Bank Open: Joao Fonseca vs Ben Shelton Match O/U 21.5 at 61%, suggesting a probable but not certain outcome. This moderate confidence level often reflects genuine uncertainty — markets at this range tend to see the most price movement as new information emerges.
Trading activity is exceptionally high, with $19K traded in the last 24 hours alone (99% 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 2026-08-17. 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 09, 2026 at 09:45 UTC, the leading outcome is National Bank Open: Joao Fonseca vs Ben Shelton Match O/U 21.5 at 61% probability, with $19K in total trading volume on Polymarket.
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