

Iga Swiatek defeated Qinwen Zheng 6-4 4-6 6-1 in the San Diego round of 16 on hard. The result followed the form book — Iga Swiatek came in ranked #8, leading the head-to-head 8–1. Iga Swiatek extended the head-to-head to 9–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-03-05 | Indian Wells | QF | hard | Iga Swiatek | 6-3 6-3 |
| 2024-07-29 | Paris Olympics | SF | clay | Qinwen Zheng | 6-2 7-5 |
| 2024-02-19 | Dubai | QF | hard | Iga Swiatek | 6-3 6-2 |
| 2024-01-03 | United Cup | QF | hard | Iga Swiatek | 6-2 6-3 |
| 2024-01-01 | United Cup | QF | hard | Iga Swiatek | 6-2 6-3 |
| 2023-08-14 | Cincinnati | R16 | hard | Iga Swiatek | 3-6 6-1 6-1 |
| 2023-04-17 | Stuttgart | R16 | clay | Iga Swiatek | 6-1 6-4 |
| 2022-10-10 | San Diego | R16 | hard | Iga Swiatek | 6-4 4-6 6-1 |
| 2022-05-23 | Roland Garros | R16 | clay | Iga Swiatek | 6-7 6-0 6-2 |
Averages over each player's completed matches in the selected window (200 vs 200). 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). 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