Stadium: Court 9 Round: 62
| ITF Women Osaka Qual | 2018/04/07 04:00 | Ange Oby Kajuru v Sakura Hosogi | 7-5,6-1 |
| ITF Women Kashiwa Qual | 2018/04/01 04:30 | Haruka Kaji v Ange Oby Kajuru | 6-4,6-0 |
| ITF Women Kofu | 2018/03/27 01:00 | Ange Oby Kajuru v Su Jeong Jang | 0-6,6-7 |
| ITF Women Nishi-Tama | 2018/03/17 01:00 | Mami Hasegawa v Ange Oby Kajuru | 6-4,2-6,6-2 |
| ITF Women Toyota Qual | 2018/03/10 08:00 | Ange Oby Kajuru v Chihiro Muramatsu | 3-6,3-6 |
| ITF Women Wesley Chapel Qual | 2018/01/22 16:00 | Sanaz Marand v Ange Oby Kajuru | 6-1,7-5 |
| ITF Women Wesley Chapel Qual | 2018/01/21 17:30 | Andrea Duva v Ange Oby Kajuru | 1-6,0-6 |
| ITF Women Daytona Beach Qual | 2018/01/08 19:30 | Ange Oby Kajuru v Chanelle Van Nguyen | 4-6,1-6 |
| ITF Women Osaka Qual | 2018/04/08 02:00 | Mayuka Aikawa v Risa Ushijima | 4-6,1-6 |
| ITF Women Kashiwa Qual | 2018/04/01 00:30 | Karman Kaur Thandi v Risa Ushijima | 6-3,6-1 |
| ITF Women Kofu | 2018/03/28 01:00 | Karman Kaur Thandi v Risa Ushijima | 6-3,6-3 |
| ITF Women Kofu Qual | 2018/03/26 04:40 | Natsumi Koshino v Risa Ushijima | 2-6,6-4,2-6 |
| ITF Women Kofu Qual | 2018/03/25 04:00 | Suzuka Furukawa v Risa Ushijima | 3-6,0-6 |
| ITF Women Kofu Qual | 2018/03/24 07:00 | Robu Kajitani v Risa Ushijima | 0-6,7-6,2-6 |
| ITF Women Nishi-Tama | 2018/03/24 02:00 | Na Ri Kim v Risa Ushijima | 6-1,6-1 |
| ITF Women Nishi-Tama | 2018/03/23 02:30 | Risa Ushijima v Giulia Gatto Monticone | 6-1,6-3 |