Ai Sugiyama defeated Patty Schnyder 6-2 6-1 in the Rome round of 16 on clay. The result followed the form book — Ai Sugiyama came in leading the head-to-head 3–2, defending last year's round of 16. Ai Sugiyama extended the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-06-22 | Wimbledon | R128 | grass | Ai Sugiyama | 6-4 6-4 |
| 2008-07-21 | Los Angeles | R32 | hard | Ai Sugiyama | 6-4 7-5 |
| 2008-02-11 | Antwerp | R16 | hard | Patty Schnyder | 6-3 6-4 |
| 2001-01-07 | Canberra | R16 | hard | Ai Sugiyama | 6-0 3-6 7-5 |
| 1999-01-03 | Hope Island | SF | hard | Patty Schnyder | 6-0 1-6 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (172 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About