Yung Jan Chan defeated Aiko Nakamura 6-1 6-3 in the Fukuoka 50K semi-final on grass. The upset overturned the form book — Aiko Nakamura came in leading the head-to-head 2–0. Yung Jan Chan claimed a first win over Aiko Nakamura in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-10-02 | Japan Open | SF | hard | Aiko Nakamura | 7-6 2-6 6-4 |
| 2005-05-02 | Gifu 50K | R16 | carpet | Aiko Nakamura | 6-2 3-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About