Shiho Akita defeated Chinami Ogi 3-6 6-1 6-4 in the Makinohara 25K qualifying round on carpet. The result followed the form book — Shiho Akita came in leading the head-to-head 3–0. Shiho Akita extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-05-07 | Fukuoka 50K | Q16 | grass | Shiho Akita | 6-2 6-3 |
| 2011-10-24 | Hamanako 25K | R16 | carpet | Shiho Akita | 7-5 7-5 |
| 2011-05-23 | Niigata 25K | R16 | hard | Shiho Akita | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.