Petra Marcinko vs Simona Waltert Prediction (Aug 12, 2026)

Result: Simona Waltert won. We gave Simona Waltert 61% before the match, so our pick (Simona Waltert) was right.

Brier score (lower is better): ours 0.154, market six hours out 0.303.

Our modelSimona Waltert 61% · Petra Marcinko 39%
Market price at our callSimona Waltert 52%
EventCincinnati · Hard
Scheduled startWed Aug 12, 2026, 01:00 PM ET
Call logged2026-08-11 21:38 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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