Suchanun Viratprasert defeated Zi Yan 7-5 2-6 7-5 in the Washington DC 75K qualifying round on hard. The upset overturned the form book — Zi Yan came in leading the head-to-head 1–0. Suchanun Viratprasert claimed a first win over Zi Yan in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-11-07 | Shenzhen 50K | QF | hard | Zi Yan | 6-4 6-3 |
Averages over each player's completed matches in the selected window (1 vs 52). 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. Small sample — read as indicative. About