Ai Sugiyama defeated Akiko Morigami 6-3 7-5 in the Japan Open round of 16 on hard. The result followed the form book — Ai Sugiyama came in leading the head-to-head 4–0, defending last year's semi-final. Ai Sugiyama extended the head-to-head to 5–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-06-26 | Wimbledon | R64 | grass | Ai Sugiyama | 6-2 7-5 |
| 2005-09-19 | Beijing | R32 | hard | Ai Sugiyama | 7-6(3) 6-4 |
| 2005-08-01 | San Diego | SF | hard | Ai Sugiyama | 6-4 4-3 RET |
| 2004-05-17 | Strasbourg | R16 | clay | Ai Sugiyama | 1-6 6-3 6-2 |
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 74). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About