Sheng Nan Sun defeated So Jung Kim 6-2 6-4 in the Wuxi 25K qualifying round on hard. The result followed the form book — Sheng Nan Sun came in leading the head-to-head 2–0. Sheng Nan Sun extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-08-17 | Pingguo 25K | QF | hard | Sheng Nan Sun | 6-4 3-6 6-1 |
| 2005-09-05 | Beijing 2 50K | R32 | hard | Sheng Nan Sun | 7-5 6-4 |
Averages over each player's completed matches in the selected window (4 vs 5). 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