Nan Nan Liu defeated Tian Tian Sun 7-6 6-4 in the Hangzhou 25K round of 32 on hard. The upset overturned the form book — Tian Tian Sun came in leading the head-to-head 2–0, but Nan Nan Liu had been the form player, winning 3 of their last 5 on hard. Nan Nan Liu claimed a first win over Tian Tian Sun in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-12-01 | Changsha 50K | R32 | hard | Tian Tian Sun | 6-3 6-3 |
| 2000-04-10 | Shenyang 10K | R16 | hard | Tian Tian Sun | 6-4 2-6 7-6(6) |
Averages over each player's completed matches in the selected window (2 vs 28). 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