Sheng Nan Sun defeated Shuai Zhang 6-2 6-3 in the Shenzhen 50K round of 32 on hard. The upset overturned the form book — Shuai Zhang came in leading the head-to-head 2–0. Sheng Nan Sun claimed a first win over Shuai Zhang in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-08-21 | Nanjing 25K | SF | hard | Shuai Zhang | 6-4 6-2 |
| 2006-06-19 | Changwon 25K | R32 | hard | Shuai Zhang | 6-2 6-1 |
Averages over each player's completed matches in the selected window (4 vs 200). 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
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About