
Qinwen Zheng defeated Marta Kostyuk 6-2 1-6 6-3 in the Montreal round of 64 on hard. The upset overturned the form book — Marta Kostyuk came in ranked #11. Qinwen Zheng extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-03-11 | Indian Wells | R16 | hard | Qinwen Zheng | 6-3 6-2 |
| 2025-03-05 | Indian Wells | R16 | hard | Qinwen Zheng | 6-3 6-2 |
| 2024-04-15 | Stuttgart | R16 | clay | Marta Kostyuk | 6-2 4-6 7-5 |
| 2023-08-07 | Montreal | R64 | hard | Qinwen Zheng | 6-2 1-6 6-3 |
Averages over each player's completed matches in the selected window (165 vs 161). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Zheng Q.: 9 days rest · 3 matches (14d) · Kostyuk M.: 17 days rest. 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