Kumiko Iijima defeated Mari Tanaka 6-2 6-7 6-2 in the Tokyo q32 on hard. The upset overturned the form book — Mari Tanaka came in leading the head-to-head 1–0. Kumiko Iijima claimed a first win over Mari Tanaka in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-04-18 | Yamaguchi 10K | R32 | clay | Mari Tanaka | 7-5 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.