Harold Mayot vs Justin Boulais Prediction (Sep 22, 2026)
Result: Harold Mayot won. We gave Harold Mayot 76% before the match, so our pick (Harold Mayot) was right.
Brier score (lower is better): ours 0.060, market six hours out 0.062.
| Our model | Harold Mayot 76% · Justin Boulais 24% |
| Market price at our call | Harold Mayot 73% |
| Event | Challenger Saint Tropez · Hard |
| Scheduled start | Tue Sep 22, 2026, 11:10 AM ET |
| Call logged | 2026-09-22 01:03 UTC (before first serve) |
Every call we make is logged before the match and graded after it. See the live tennis board, the full match list and our public track record.
All Challenger Saint Tropez 2026 predictions · Harold Mayot predictions
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