Tianhui Zhang defeated Qian Sun 6-4 6-2 in the M15 Luan 5 round of 16 on hard. Tianhui Zhang extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-08-19 | M15 Maanshan 7 | R32 | hard | Tianhui Zhang | 6-2 6-7 4-6 |
| 2023-07-05 | M15 Tianjin 4 | R32 | hard | Qian Sun | 7-6(6) 5-7 6-2 |
Averages over each player's completed matches in the selected window (40 vs 30). 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