Haruka Kaji defeated Ya Hsuan Lee 6-2 6-3 in the W25 Hamamatsu quarter-final on carpet. Haruka Kaji narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-08-26 | W25 Vigo | R16 | hard | Ya Hsuan Lee | 6-2 6-4 |
| 2019-09-08 | W25 Kyoto | F | hard | Ya Hsuan Lee | 6-3 6-4 |
| 2019-04-02 | W25 Kashiwa | R32 | hard | Haruka Kaji | 6-3 6-1 |
Averages over each player's completed matches in the selected window (95 vs 33). 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