Akari Inoue defeated Shiho Akita 6-4 7-6 in the Nishi Tama $10K qualifying round on hard. The upset overturned the form book — Shiho Akita came in leading the head-to-head 3–1. Akari Inoue narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-09-07 | Kyoto $10K | QF | hard | Akari Inoue | 7-5 5-7 6-0 |
| 2013-07-01 | Bangkok 10K | QF | hard | Shiho Akita | 7-5 6-3 |
| 2012-10-22 | Hamamatsu 25K | R32 | grass | Shiho Akita | 6-2 6-4 |
| 2011-05-23 | Niigata 25K | R32 | hard | Shiho Akita | 6-0 6-2 |
Averages over each player's completed matches in the selected window (1 vs 43). 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. Small sample — read as indicative. About