Yurika Sema defeated Ayumi Oka 7-5 6-0 in the Obihiro 25K round of 32 on carpet. The result followed the form book — Yurika Sema came in leading the head-to-head 1–0. Yurika Sema extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-09-13 | Kyoto 10K | R32 | carpet | Yurika Sema | 2-6 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.