Dayeon Back vs Yue Yuan Prediction (Sep 21, 2026)
Result: Dayeon Back won. We gave Dayeon Back 37% before the match, so our pick (Yue Yuan) was wrong.
Brier score (lower is better): ours 0.394, market six hours out 0.624.
| Our model | Yue Yuan 63% · Dayeon Back 37% |
| Market price at our call | Yue Yuan 76% |
| 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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