Junri Namigata defeated Tomoko Yonemura 6-2 6-3 in the Osaka round of 32 on hard. Junri Namigata extended the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-04 | Fukuoka 50K | QF | grass | Tomoko Yonemura | 6-3 6-3 |
| 2007-09-10 | Tokyo 50K | R16 | hard | Junri Namigata | 6-2 7-5 |
| 2006-10-30 | Shanghai 50K | R32 | hard | Tomoko Yonemura | 1-6 6-3 6-2 |
| 2004-09-06 | Ibaraki 25K | R32 | hard | Junri Namigata | 3-6 6-2 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.