Erika Takao defeated Yung Jan Chan 6-3 2-6 6-2 in the Yamaguchi 10K round of 32 on clay. The upset overturned the form book — Yung Jan Chan came in leading the head-to-head 3–2. Erika Takao narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-05-07 | Fukuoka 50K | R16 | grass | Erika Takao | 5-3 |
| 2011-11-21 | Toyota 75K | R32 | carpet | Yung Jan Chan | 6-1 6-1 |
| 2011-05-02 | Fukuoka 50K | QF | grass | Yung Jan Chan | 6-4 7-6(4) |
| 2006-05-01 | Gifu 50K | R32 | carpet | Erika Takao | 6-3 5-7 6-4 |
| 2006-03-20 | Melbourne Victoria 25K | QF | clay | Yung Jan Chan | 6-4 3-6 6-2 |
Averages over each player's completed matches in the selected window (1 vs 125). 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. Small sample — read as indicative. About