Round: 26 Ground: Hardcourt outdoor
| ITF Women Tokyo Qual | 2017/06/05 03:55 | Ushijima, Risa v Michika Ozeki | 6-4,6-4 |
| ITF Women Kurume | 2017/05/16 01:00 | Michika Ozeki v Ushijima, Risa | 3-6,3-6 |
| Hua Hin, Singles W-WITF-THA-07A | 2017/07/17 07:30 | Sawasdee, Watsachol v Michika Ozeki | 4-6,4-6 |
| Hua Hin, Singles W-WITF-THA-07A | 2017/07/12 03:00 | Chieh-Yu Hsu v Michika Ozeki | 7-6,1-6,7-5 |
| Hua Hin, Singles W-WITF-THA-07A | 2017/07/10 03:00 | Michika Ozeki v Jandakate, Chompoothip | 6-1,6-1 |
| ITF Women Victoria | 2017/06/23 17:00 | Michika Ozeki v Johanson, Rosie | 6-3,2-6,4-6 |
| ITF Women Victoria | 2017/06/22 19:00 | Michika Ozeki v Kelley, Meghan | 4-6,6-1,6-4 |
| ITF Women Victoria | 2017/06/20 16:00 | Michika Ozeki v Larner, Erin | 7-5,6-4 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2017/06/12 01:00 | Michika Ozeki v Moyuka Uchijima | 1-6,2-6 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2017/06/11 05:00 | Michika Ozeki v Sakura Hosogi | 6-2,7-6 |
| Hua Hin, Singles W-WITF-THA-07A | 2017/07/18 06:30 | Ksenia Laskutova v Ushijima, Risa | 2-6,2-6 |
| Hua Hin, Singles W-WITF-THA-07A | 2017/07/12 06:00 | Ushijima, Risa v Alexandra Bozovic | 4-6,6-4,5-7 |
| Hua Hin, Singles W-WITF-THA-07A | 2017/07/11 03:00 | Ushijima, Risa v Yoshitomi, Aiko | 7-5,6-1 |
| ITF Women Taipei | 2017/06/24 02:00 | Ushijima, Risa v Pei-Chi Lee | 3-6,6-3,4-6 |
| ITF Women Taipei | 2017/06/23 02:00 | Ushijima, Risa v Kyoka Okamura | 6-0,6-4 |
| ITF Women Taipei | 2017/06/22 01:30 | Ushijima, Risa v I-Hsuan Cho | 6-2,7-6 |
| ITF Women Taipei | 2017/06/21 01:30 | Ushijima, Risa v Hsieh, Yu-Chieh | 6-3,6-1 |
| Kofu, Singles W-WITF-JPN-02A | 2017/06/15 02:30 | Tanaka, Yuuki v Ushijima, Risa | 6-3,6-0 |