Filip Pieczonka vs Harold Mayot Prediction (Aug 4, 2026)
Result: Harold Mayot won. We gave Harold Mayot 72% before the match, so our pick (Harold Mayot) was right.
Brier score (lower is better): ours 0.079, market six hours out 0.022.
| Our model | Harold Mayot 72% · Filip Pieczonka 28% |
| Market price at our call | Harold Mayot 87% |
| Event | Challenger Grodzisk Mazowiecki · Hard |
| Scheduled start | Tue Aug 4, 2026, 08:00 AM ET |
| Call logged | 2026-08-03 21:26 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 Grodzisk Mazowiecki 2026 predictions · Harold Mayot predictions
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