Makoto Ninomiya defeated Akari Inoue 6-2 7-6 in the Karuizawa $25K semi-final on grass. The result followed the form book — Makoto Ninomiya came in leading the head-to-head 1–0. Makoto Ninomiya extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-03-16 | Kofu $10K | R16 | hard | Makoto Ninomiya | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.