Mari Tanaka defeated Keiko Taguchi 7-5 6-3 in the Hamanako 25K round of 32 on carpet. The result followed the form book — Mari Tanaka came in leading the head-to-head 1–0. Mari Tanaka extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-29 | Gunma 25K | R32 | carpet | Mari Tanaka | 6-1 4-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.