Shiho Akita advanced when Sachie Ishizu retired 6-7 6-4 3-0 in the Tsukuba 25K semi-final. Shiho Akita claimed a first win over Sachie Ishizu in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-05-02 | Fukuoka 50K | R32 | grass | Sachie Ishizu | 6-1 7-6(3) |
| 2009-08-24 | Saitama 10K | F | hard | Sachie Ishizu | 6-3 6-4 |
| 2009-07-06 | Tokyo 10K | SF | carpet | Sachie Ishizu | 6-1 6-2 |
Averages over each player's completed matches in the selected window (200 vs 12). 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