Yi Chen defeated Sayaka Umeda 6-3 6-1 in the Ibaraki 25K round of 32 on hard. The result followed the form book — Yi Chen came in leading the head-to-head 1–0. Yi Chen extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-01 | Jakarta 10K | R32 | hard | Yi Chen | 6-1 6-1 |