Aiko Nakamura defeated Meng Yuan 6-0 7-5 in the San Diego q16 on hard. The upset overturned the form book — Meng Yuan came in leading the head-to-head 2–1, defending last year's round of 64. Aiko Nakamura narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-03-23 | Hammond LA 25K | R32 | hard | Aiko Nakamura | 6-4 6-3 |
| 2009-02-13 | Memphis | Q16 | hard | Meng Yuan | 6-2 6-4 |
| 2005-10-10 | Bangkok | R32 | hard | Meng Yuan | 6-2 4-6 6-3 |
Averages over each player's completed matches in the selected window (46 vs 25). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About