Chiaki Okadaue defeated Shiho Hisamatsu 7-6 6-3 in the Makinohara 25K round of 32 on carpet. The result followed the form book — Chiaki Okadaue came in leading the head-to-head 2–0. Chiaki Okadaue extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-07-27 | Obihiro-Tokachi 25K | R32 | carpet | Chiaki Okadaue | 6-3 6-2 |
| 2008-12-22 | Delhi 50K | R32 | hard | Chiaki Okadaue | 6-1 6-4 |
Averages over each player's completed matches in the selected window (2 vs 3). 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