| ITF Women Iizuka Qual | 2016/09/26 01:00 | Kotomi Takahata v Мей Ямагучи | 6-2,6-1 |
| ITF Women Kurume Qual | 2017/05/14 03:15 | Ayano Sonoda v Мей Ямагучи | 0-6,3-6 |
| ITF Women Fukuoka Qual | 2017/05/07 06:00 | Мей Ямагучи v Monique Adamczak | 1-6,3-6 |
| ITF Women Fukuoka Qual | 2017/05/07 01:00 | Мей Ямагучи v Mina Miyahara | 6-1,6-3 |
| ITF Women Kofu Qual | 2017/03/25 03:30 | Ксю Ванг v Мей Ямагучи | 6-4,6-2 |
| ITF Women Nishi-Tama | 2017/03/18 03:00 | Канако Морисаки v Мей Ямагучи | 7-5,7-5 |
| ITF Women Yokohama Qual | 2017/03/05 03:00 | Мей Ямагучи v Раму Уеда | 2-6,2-6 |
| ITF Women Makinohara Qual | 2016/10/09 03:00 | Hayaka Murase v Мей Ямагучи | 6-2,3-6,6-3 |
| ITF Women Iizuka Qual | 2016/09/26 01:00 | Kotomi Takahata v Мей Ямагучи | 6-2,6-1 |
| ITF Women Kurume Qual | 2017/05/14 05:00 | Анри Нагата v Kotomi Takahata | 4-6,3-6 |
| ITF Women Fukuoka Qual | 2017/05/07 04:35 | Kotomi Takahata v Ерина Хаяши | 4-6,6-2,0-6 |
| ITF Women Fukuoka Qual | 2017/05/07 01:00 | Наоки Ето v Kotomi Takahata | 3-6,2-6 |
| ITF Women Gifu Qual | 2017/04/30 05:45 | Kotomi Takahata v Jia-Qi Kang | 2-6,3-6 |
| ITF Women Kashiwa Qual | 2017/04/03 00:30 | Сунам Джеонг v Kotomi Takahata | 6-0,7-6 |
| ITF Women Kashiwa Qual | 2017/04/02 04:00 | Kotomi Takahata v Сеунг-Йон Хонг | 6-4,6-3 |
| ITF Women Kofu Qual | 2017/03/25 01:00 | Kotomi Takahata v Вушуанг Женг | 3-6,0-6 |
| ITF Women Nishi-Tama | 2017/03/22 04:50 | Kotomi Takahata v Сара Ребека Секулич | 1-6,1-6 |