Su Jeong Jang defeated Yafan Wang 7-5 6-2 in the W25 Kofu semi-final on hard. The upset overturned the form book — Yafan Wang came in ranked #354, leading the head-to-head 3–0. Su Jeong Jang claimed a first win over Yafan Wang in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-07-20 | Zhengzhou $25K | QF | hard | Yafan Wang | 6-3 6-3 |
| 2013-09-02 | Yeong Wol 10K | R16 | hard | Yafan Wang | 6-3 6-3 |
| 2013-08-26 | Yeong Wol 10K | SF | hard | Yafan Wang | 6-2 6-2 |
Averages over each player's completed matches in the selected window (69 vs 76). 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