Jelena Ostapenko vs Anastasia Zakharova Prediction (Sep 21, 2026)
Result: Jelena Ostapenko won. We gave Jelena Ostapenko 61% before the match, so our pick (Jelena Ostapenko) was right.
Brier score (lower is better): ours 0.151, market six hours out 0.137.
| Our model | Jelena Ostapenko 61% · Anastasia Zakharova 39% |
| Market price at our call | Jelena Ostapenko 48% |
| Event | Seoul · Hard |
| Scheduled start | Mon Sep 21, 2026, 02:00 AM ET |
| Call logged | 2026-09-20 03:09 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.
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