Riko Sawayanagi defeated Kazusa Ito 6-1 4-6 6-4 in the Karuizawa 25K q16 on carpet. Riko Sawayanagi extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-03-18 | Kofu 10K | R32 | hard | Riko Sawayanagi | 6-3 6-3 |
| 2012-05-07 | Fukuoka 50K | Q16 | grass | Kazusa Ito | 6-1 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.