| Date | R | HEIM v AUSWÄRTS | - |
|---|---|---|---|
| 03/21 01:00 | 26 | Kayo Nishimura v Natsumi Kawaguchi | 2-6,6-2,6-0 |
| 03/19 01:00 | 25 | Mio Mushika v Natsumi Kawaguchi | 4-6,7-6,4-6 |
| 03/26 06:00 | 29 | Aoi Ito v Natsumi Kawaguchi | 4-6,3-6 |
| 03/26 00:30 | 28 | Natsumi Kawaguchi v Ayumi Koshiishi | 6-1,6-2 |
| 03/24 00:00 | 27 | Akiko Omae v Natsumi Kawaguchi | 4-6,4-6 |
| 03/23 07:10 | 26 | Gyeong Seo Lee v Natsumi Kawaguchi | 3-6,3-6 |
| 03/22 04:30 | 25 | Kanako Osafune v Natsumi Kawaguchi | 3-6,1-6 |