Su Jeong Jang defeated Haruna Arakawa 7-6 6-2 in the W50 Kashiwa 1 round of 32 on hard. Su Jeong Jang extended the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-11-07 | W35 Hamamatsu 1 | R16 | carpet | Haruna Arakawa | 6-2 7-6(4) |
| 2024-05-16 | W75 Kurume 1 | R16 | carpet | Su Jeong Jang | 7-6(3) 6-1 |
| 2019-06-08 | W25 Daegu | SF | hard | Haruna Arakawa | 6-3 5-7 7-5 |
| 2019-05-30 | W25 Incheon | R16 | hard | Su Jeong Jang | 6-1 7-5 |
Averages over each player's completed matches in the selected window (51 vs 46). 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