
Shuai Zhang defeated Jelena Ostapenko in the Round of 64 at the Toronto tournament on hard courts. Ostapenko retired during the match, trailing 6-0, 4-0. Zhang had converted five service breaks and won 90 percent of her first-serve points en route to the win.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-03-04 | Indian Wells | R64 | hard | Jelena Ostapenko | 6-2 6-1 |
| 2018-05-14 | Rome | R32 | clay | Jelena Ostapenko | 6-2 7-5 |
Averages over each player's completed matches in the selected window (40 vs 33). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Slight edge · Ostapenko J. narrowly ahead
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.
Zhang S.: 3 days rest · 2 matches, 45 games (7d) · Ostapenko J.: 4 days rest · 1 match, 16 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About