Marta Kostyuk v Sloane Stephens
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Tennis·WTA US Open· 2026-09-02 · 15:00

Marta Kostyuk v Sloane Stephens

Recommended bet
Marta Kostyuk
Match winner
De-vigged fair price from the marketHigh
Win probability88%
Implied (with margin)90%
Model edge-2.4%
Odds1.11 1/9
Crowd odds — Polymarket
Marta Kostyuk88%
Sloane Stephens13%
$62,672 liquidity · $102 traded · data from Polymarket
Why the model leans this way
  • Marta Kostyuk holds serve 69% of games vs Sloane Stephens's 61%
  • Marta Kostyuk double-faults on 7% of serve points vs Sloane Stephens's 3%
  • Marta Kostyuk wins 46% of return points vs Sloane Stephens's 42%
All markets
Match winnerProbOddsEdge
Marta Kostyuk to win85%1.17—
Sloane Stephens to win15%6.74—
Match Winner — Marta Kostyuk—1.14—
Match Winner — Sloane Stephens—8.60—