Shuai Zhang defeated Elena Chalova 6-4 6-2 in the Saint Gaudens 50K qualifying round on clay. The upset overturned the form book — Elena Chalova came in leading the head-to-head 2–0. Shuai Zhang claimed a first win over Elena Chalova in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-03-09 | Las Palmas De Gran Canaria 10K | R16 | hard | Elena Chalova | 6-3 6-0 |
| 2006-07-17 | Chongqing 25K | F | hard | Elena Chalova | 6-4 4-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.
Per-surface Serve / Return Rating (0–100, percentile within the clay field, opponent-adjusted over 52 weeks). About