Round: 62 Ground: Hardcourt outdoor
| ITF Women Nishi-Tama | 2017/03/19 02:00 | Ayumi Koshiishi v Robu Kajitani | 1-6,6-0,6-3 |
| ITF Women Nishi-Tama | 2017/03/18 03:00 | Nina Stadler v Ayumi Koshiishi | 6-0,6-7,3-6 |
| ITF Women Yokohama Qual | 2017/03/05 06:00 | Haruka Kaji v Ayumi Koshiishi | 4-6,6-1,6-4 |
| ITF Women Toyota Qual | 2016/11/13 08:50 | Na Ri Kim v Ayumi Koshiishi | 7-5,3-6,6-3 |
| ITF Women Toyota Qual | 2016/11/13 02:10 | Sari Baba v Ayumi Koshiishi | 6-7,2-6 |
| ITF Women Makinohara | 2016/10/11 00:30 | Miharu Imanishi v Ayumi Koshiishi | 6-3,6-4 |
| ITF Women Makinohara Qual | 2016/10/10 02:00 | Ayumi Koshiishi v Natsumi Chimura | 6-2,6-2 |
| ITF Women Makinohara Qual | 2016/10/09 04:00 | Mitsumi Kawasaki v Ayumi Koshiishi | 2-6,6-7 |
| ITF Women Nishi-Tama | 2017/03/19 02:00 | Ange Oby Kajuru v Eri Shimizu | 2-6,2-6 |
| ITF Women Nishi-Tama | 2017/03/18 03:00 | Eri Shimizu v Nozomi Fujioka | 6-3,6-3 |
| ITF Women Hua Hin | 2016/11/27 04:35 | Yu Jin Ahn v Eri Shimizu | 6-2,6-7,7-6 |
| ITF Women Hua Hin | 2016/11/22 06:15 | Nudnida Luangnam v Eri Shimizu | 6-1,4-6,6-2 |
| ITF Women Toyota Qual | 2016/11/13 00:30 | Miharu Imanishi v Eri Shimizu | 4-6,6-4,6-1 |
| ITF Women Tokyo Qual | 2016/11/05 02:10 | Ksenia Lykina v Eri Shimizu | 6-1,6-3 |