Mirra Andreeva vs Marta Kostyuk Prediction (Aug 19, 2026)

Result: Marta Kostyuk won. We gave Marta Kostyuk 45% before the match, so our pick (Mirra Andreeva) was wrong.

Brier score (lower is better): ours 0.307, market six hours out 0.292.

Our modelMirra Andreeva 55% · Marta Kostyuk 45%
Market price at our callMirra Andreeva 68%
EventCincinnati · Hard
Scheduled startWed Aug 19, 2026, 02:00 PM ET
Call logged2026-08-18 21:19 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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