Stadium: I Round: 25 Ground: Hardcourt outdoor
| ITF Women Kofu | 2017/06/14 01:00 | Ayumi Miyamoto v Risa Ushijima | 4-6,2-6 |
| ITF Women Kofu Qual | 2017/03/27 08:05 | Ayumi Miyamoto v Risa Ushijima | 6-1,3-6,5-7 |
| ITF Women Nishi-Tama | 2018/03/19 01:00 | Ayumi Miyamoto v Chie Kezuka | 6-1,6-0 |
| ITF Women Toyota Qual | 2018/03/11 01:00 | Miyabi Inoue v Ayumi Miyamoto | 6-0,6-1 |
| ITF Women Toyota Qual | 2018/03/10 01:00 | Ayumi Miyamoto v Mio Kozaki | 6-2,6-3 |
| ITF Women Yokohama Qual | 2018/03/04 05:30 | Ayumi Miyamoto v Julia Lohoff | 1-6,2-6 |
| ITF Women Toyota Qual | 2017/11/12 10:10 | Ayumi Miyamoto v Nicha Lertpitaksinchai | 2-6,6-4,2-6 |
| ITF Women Toyota Qual | 2017/11/12 05:50 | Funa Kozaki v Ayumi Miyamoto | 1-6,0-6 |
| WTA Tokyo Qual | 2017/09/16 02:35 | Ayumi Miyamoto v Gabriela Dabrowski | 1-6,2-6 |
| ITF Women Kyoto | 2017/09/05 06:00 | Minami Shuto v Ayumi Miyamoto | 6-4,6-3 |
| ITF Women Toyota | 2018/03/15 03:30 | Risa Ushijima v Ayla Aksu | 4-6,2-6 |
| ITF Women Toyota | 2018/03/14 01:00 | Risa Ushijima v Ryoko Ikeda | 6-2,6-3 |
| ITF Women Toyota Qual | 2018/03/12 03:30 | Risa Ushijima v Misa Eguchi | 4-6,6-3,7-6 |
| ITF Women Toyota Qual | 2018/03/11 01:00 | Kanako Morisaki v Risa Ushijima | 3-6,1-6 |
| ITF Women Toyota Qual | 2018/03/10 03:00 | Mami Hasegawa v Risa Ushijima | 1-6,6-3,2-6 |
| ITF Women Yokohama Qual | 2018/03/05 03:00 | Risa Ushijima v Moyuka Uchijima | 4-6,6-7 |
| ITF Women Yokohama Qual | 2018/03/04 07:30 | Robin Anderson v Risa Ushijima | 7-6,6-7,1-6 |
| ITF Women Perth | 2018/02/22 06:10 | Jaimee Fourlis v Risa Ushijima | 6-2,6-3 |