Zi Yan defeated Jie Zheng 6-2 6-2 in the Beijing 1 50K semi-final on hard. The upset overturned the form book — Jie Zheng came in leading the head-to-head 7–2, but Zi Yan had been the form player, winning 4 of their last 7 on hard. Zi Yan narrowed the head-to-head to 7–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-08-07 | Stockholm | R32 | hard | Jie Zheng | 7-5 6-0 |
| 2004-11-01 | Shenzhen 2 50K | SF | hard | Jie Zheng | 6-0 6-4 |
| 2004-09-13 | Beijing 25K | SF | hard | Jie Zheng | 6-3 6-3 |
| 2003-09-29 | Japan Open | QF | hard | Jie Zheng | 7-6 6-3 |
| 2003-09-08 | Bali | Q16 | hard | Jie Zheng | 6-2 6-2 |
| 2003-03-24 | Atlanta 25K | QF | hard | Jie Zheng | 6-1 6-2 |
| 2002-05-20 | Tianjin 25K | R16 | hard | Jie Zheng | 6-3 6-1 |
| 2002-01-21 | Hull 10K | QF | hard | Zi Yan | 6-4 6-2 |
| 2001-07-23 | Guangzhou 25K | R32 | hard | Zi Yan | 6-4 4-6 7-6(3) |
Averages over each player's completed matches in the selected window (52 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