Gonzalo Bueno vs Jan Kumstat Prediction (Aug 2, 2026)
Result: Jan Kumstat won. We gave Jan Kumstat 44% before the match, so our pick (Gonzalo Bueno) was wrong.
Brier score (lower is better): ours 0.315, market six hours out 0.212.
| Our model | Gonzalo Bueno 56% · Jan Kumstat 44% |
| Market price at our call | Gonzalo Bueno 45% |
| Event | ATP Challenger Buenos Aires · Clay |
| Scheduled start | Sun Aug 2, 2026, 08:00 AM ET |
| Call logged | 2026-08-01 21:25 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 ATP Challenger Buenos Aires 2026 predictions · Gonzalo Bueno predictions · Jan Kumstat predictions
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