Aki Yamasoto defeated Akiko Omae 6-1 6-2 in the Tsukuba 25K semi-final on hard. The upset overturned the form book — Akiko Omae came in leading the head-to-head 1–0. Aki Yamasoto claimed a first win over Akiko Omae in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-07-07 | Bangkok 10K | R32 | hard | Akiko Omae | 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.