Jing Jing Liu defeated Tian Tian Sun 4-6 6-4 7-5 in the Guangzhou 25K qualifying round on hard. The upset overturned the form book — Tian Tian Sun came in leading the head-to-head 1–0. Jing Jing Liu claimed a first win over Tian Tian Sun in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-05-29 | Shenzhen 25K | R16 | hard | Tian Tian Sun | 6-3 4-6 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.