Ai Sugiyama advanced when Vera Zvonareva retired 6-3 1-1 in the Australian Open round of 128. Ai Sugiyama narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-05-12 | Rome | R64 | clay | Vera Zvonareva | 6-3 6-3 |
| 2008-03-24 | Miami | R16 | hard | Vera Zvonareva | 6-2 6-7(5) 6-0 |
| 2006-07-31 | San Diego | R64 | hard | Vera Zvonareva | 6-1 7-5 |
| 2003-10-20 | Linz | SF | hard | Ai Sugiyama | 6-3 3-6 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 (67 vs 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About