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Olle Wallin vs Zdenek Kolar Prediction (Sep 8, 2026)

Result: Zdenek Kolar won. We gave Zdenek Kolar 50% before the match, so our pick (Olle Wallin) was wrong.

Brier score (lower is better): ours 0.254, market six hours out 0.303.

Our model	Olle Wallin 50% · Zdenek Kolar 50%
Market price at our call	Olle Wallin 56%
Event	Challenger Tulln · Clay
Scheduled start	Tue Sep 8, 2026, 07:00 AM ET
Call logged	2026-09-07 20:35 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 Tulln 2026 predictions · Zdenek Kolar predictions

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