Stadium: Court 1 Round: 62 Ground: Grass
| ITF Women Tsukuba Qual | 2017/08/20 00:30 | Kato, Kei v Yukina Saigo | 1-6,4-6 |
| ITF Women Tokyo Qual | 2017/06/05 01:00 | Kyoka Okamura v Kato, Kei | 6-1,6-1 |
| ITF Women Tokyo Qual | 2017/06/04 02:15 | Moyuka Uchijima v Kato, Kei | 5-7,5-7 |
| ITF Women Karuizawa Qual | 2017/05/22 02:55 | Kato, Kei v Moyuka Uchijima | 4-6,2-6 |
| ITF Women Karuizawa Qual | 2017/05/21 04:00 | Kato, Kei v Miyachi, Ran | 6-4,6-0 |
| ITF Women Kurume Qual | 2017/05/15 01:00 | Fujiwara, Rika v Kato, Kei | 6-0,7-6 |
| ITF Women Kurume Qual | 2017/05/14 07:50 | Matsumoto, Hina v Kato, Kei | 3-6,4-6 |
| ITF Women Kurume Qual | 2017/05/14 05:15 | Kajitani, Robu v Kato, Kei | 3-6,6-7 |
| ITF Women Hamamatsu Qual | 2017/10/14 01:00 | Matsumoto, Ari v Kajuru, Ange Oby | 3-6,6-1,3-6 |
| ITF Women Makinohara Qual | 2017/10/09 00:30 | Cheong, Naomi v Kajuru, Ange Oby | 3-6,6-3,6-4 |
| ITF Women Makinohara Qual | 2017/10/08 02:00 | Mana Kawamura v Kajuru, Ange Oby | 4-6,4-6 |
| ITF Women Nonthaburi Qual | 2017/10/02 04:05 | En Shuo Liang v Kajuru, Ange Oby | 6-4,6-2 |
| ITF Women Nonthaburi Qual | 2017/10/01 12:00 | Joanna Garland v Kajuru, Ange Oby | 1-6,4-6 |
| Hua Hin, Singles W-WITF-THA-07A | 2017/09/26 03:00 | Kajuru, Ange Oby v Vrljic, Ana | 3-6,6-3,3-6 |
| ITF Women Hua Hin Qual | 2017/09/25 05:00 | Zhuoma Ni Ma v Kajuru, Ange Oby | 4-6,5-7 |
| ITF Women Hua Hin Qual | 2017/09/24 13:55 | Kajuru, Ange Oby v Meng, Ran | 6-2,2-6,7-6 |