Shiho Akita defeated Erika Sema 7-5 6-4 in the W80 Gifu q32 on hard. The upset overturned the form book — Erika Sema came in ranked #490, leading the head-to-head 2–1. Shiho Akita narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-05-23 | Niigata 25K | SF | hard | Erika Sema | 7-5 6-3 |
| 2009-09-28 | Hamanako 25K | R32 | carpet | Shiho Akita | 6-7(4) 6-4 6-4 |
| 2009-05-25 | Gunma 25K | R32 | carpet | Erika Sema | 2-6 7-5 6-3 |
Averages over each player's completed matches in the selected window (160 vs 199). 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