Ai Sugiyama defeated Sesil Karatantcheva 6-1 6-2 in the Zurich qualifying round on hard. The result followed the form book — Ai Sugiyama came in leading the head-to-head 1–0, defending last year's quarter-final. Ai Sugiyama extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-08-05 | San Diego | QF | hard | Ai Sugiyama | 6-1 6-2 |
Averages over each player's completed matches in the selected window (147 vs 68). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
wins 53% of points on serve vs Sugiyama A.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About