Riko Sawayanagi advanced when Junri Namigata retired 2-1 in the Hamamatsu 25K round of 32. Riko Sawayanagi extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2022-09-08 | W15 Yeongwol 2 | R16 | hard | Junri Namigata | 6-2 3-6 6-4 |
| 2014-10-20 | Hamamatsu 25K | F | carpet | Riko Sawayanagi | 2-6 6-2 6-3 |
| 2014-06-09 | Kashiwa 10K | F | hard | Riko Sawayanagi | 6-4 7-6(5) |
Averages over each player's completed matches in the selected window (86 vs 195). 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