Ling Zhang defeated Lizaan Du Plessis 6-7 6-3 6-4 in the North Shore City 10K qualifying round on hard. The upset overturned the form book — Lizaan Du Plessis came in leading the head-to-head 1–0. Ling Zhang claimed a first win over Lizaan Du Plessis in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-03-23 | Wellington 10K | R16 | hard | Lizaan Du Plessis | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.