Chia Jung Chuang defeated Yung Jan Chan 5-7 6-4 6-4 in the Makinohara 25K qualifying round on carpet. The upset overturned the form book — Yung Jan Chan came in leading the head-to-head 3–0. Chia Jung Chuang claimed a first win over Yung Jan Chan in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-05-07 | Fukuoka 50K | SF | carpet | Yung Jan Chan | 6-2 3-6 6-3 |
| 2006-07-17 | Kurume 25K | F | carpet | Yung Jan Chan | 5-7 6-4 6-2 |
| 2006-02-20 | Gosford 25K | QF | hard | Yung Jan Chan | 6-2 6-0 |
Averages over each player's completed matches in the selected window (5 vs 124). 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