Mayumi Yamamoto defeated Yurika Sema 6-1 6-1 in the Sutama 10K qualifying round on clay. The result followed the form book — Mayumi Yamamoto came in leading the head-to-head 1–0. Mayumi Yamamoto extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-29 | Gunma 25K | R16 | carpet | Mayumi Yamamoto | 6-3 5-7 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.