| ITF Women Tokyo Qual | 2017/06/05 01:00 | Kyoka Okamura v Kei Kato | 6-1,6-1 |
| ITF Women Tokyo Qual | 2017/06/04 02:15 | Moyuka Uchijima v Kei Kato | 5-7,5-7 |
| ITF Women Karuizawa Qual | 2017/05/22 02:55 | Kei Kato v Moyuka Uchijima | 4-6,2-6 |
| ITF Women Karuizawa Qual | 2017/05/21 04:00 | Kei Kato v Ran Miyachi | 6-4,6-0 |
| ITF Women Kurume Qual | 2017/05/15 01:00 | Rika Fujiwara v Kei Kato | 6-0,7-6 |
| ITF Women Kurume Qual | 2017/05/14 07:50 | Hina Matsumoto v Kei Kato | 3-6,4-6 |
| ITF Women Kurume Qual | 2017/05/14 05:15 | Robu Kajitani v Kei Kato | 3-6,6-7 |
| ITF Women Kofu Qual | 2017/03/27 04:00 | Kei Kato v Mari Osaka | 0-6,1-6 |
| ITF Women Nonthaburi Qual | 2017/08/13 06:30 | Yukina Saigo v Varunya Wongteanchai | 0-6,4-6 |
| ITF Women Nonthaburi Qual | 2017/08/12 06:10 | Jaipet Anontaweesil v Yukina Saigo | 0-6,0-6 |
| ITF Women Nonthaburi Qual | 2017/08/07 02:30 | Michika Ozeki v Yukina Saigo | 6-3,5-7,6-2 |
| ITF Women Nonthaburi Qual | 2017/08/06 03:50 | Binasa Beslagic v Yukina Saigo | 5-7,1-6 |
| ITF Women Nonthaburi Qual | 2017/07/30 12:00 | Yukina Saigo v Lauren Marker | 1-6,2-6 |
| ITF Women Hong Kong | 2017/07/26 02:00 | Yukina Saigo v Prerna Bhambri | 4-6,3-6 |
| ITF Women Hong Kong | 2017/07/24 07:45 | Yukina Saigo v Tingting Pei | 6-0,6-2 |
| ITF Women Gimcheon | 2017/06/14 03:40 | Yukina Saigo v Dabin Kim | 6-2,1-6,6-7 |