Aiko Nakamura defeated Jamea Jackson 6-1 1-6 7-6 in the Japan Open quarter-final on hard. The result followed the form book — Aiko Nakamura came in leading the head-to-head 2–0, defending last year's round of 16. Aiko Nakamura extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-08-02 | Louisville 50K | SF | hard | Aiko Nakamura | 4-6 2-3 |
| 2002-07-15 | Baltimore MD 10K | R32 | hard | Aiko Nakamura | 3-6 6-3 7-5 |
Averages over each player's completed matches in the selected window (60 vs 30). 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