Zi Yan defeated Nathalie Vierin 3-6 7-6 6-4 in the Rome q16 on clay. The result followed the form book — Zi Yan came in leading the head-to-head 1–0. Zi Yan extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-06-23 | Fontanafredda 25K | R32 | clay | Zi Yan | 6-4 0-6 7-6(3) |
Averages over each player's completed matches in the selected window (42 vs 8). 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