Anastasia Potapova faces Tereza Valentova in the US Open round of 128 on hard. Anastasia Potapova is the paper favourite — ranked #25, defending last year's round of 64 — but Tereza Valentova arrives in form, winning all 4 of their last hard matches to Anastasia Potapova's 1.
Toss-up · Too close to call
Calibrated model · 65% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Averages over each player's completed matches in the selected window (26 vs 33). ATP, WTA & Challenger.
wins 55% of points on serve vs Valentova T.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Potapova A.: 13 days rest · 1 match (14d) · Valentova T.: 1 day rest · 4 matches, 67 games (7d). Higher means fresher. About
No previous meetings on record.
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About