Pierre-Hugues Herbert vs Quinn Vandecasteele Prediction (Aug 23, 2026)
Result: Quinn Vandecasteele won. We gave Quinn Vandecasteele 34% before the match, so our pick (Pierre-Hugues Herbert) was wrong.
Brier score (lower is better): ours 0.442, market six hours out 0.360.
| Our model | Pierre-Hugues Herbert 66% · Quinn Vandecasteele 34% |
| Market price at our call | Pierre-Hugues Herbert 61% |
| Event | Winston Salem Qualification · Hard |
| Scheduled start | Sun Aug 23, 2026, 01:00 PM ET |
| Call logged | 2026-08-23 00:29 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 Winston Salem Qualification 2026 predictions
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