
Katie Boulter faces Karolina Muchova in the US Open round of 64 on hard. Karolina Muchova holds the paper edge — ranked #7, leading the head-to-head 1–0, defending last year's quarter-final.
Strong favourite · Muchova K. heavily favoured
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 (35 vs 42). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Boulter K.: 3 days rest · 1 match, 25 games (7d) · Muchova K.: 2 days rest · 1 match, 15 games (7d). Higher means fresher. About
2nd on Stadium 17 · Starting at 2:10 PM · up next on court
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-03-17 | Miami | R32 | hard | Karolina Muchova | 6-3 7-5 |
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About