Stadium: Court A3 Round: 62 Ground: Synthetic outdoor
| ITF Women Osaka Qual | 2018/04/09 01:00 | Ange Oby Kajuru v Risa Ushijima | 3-6,2-6 |
| ITF Women Nanao | 2018/08/26 06:00 | Risa Ushijima v Michiru Furuya | 4-6,6-2,6-4 |
| ITF Women Tsukuba | 2018/08/23 03:30 | Xiyu Wang v Risa Ushijima | 6-4,6-1 |
| ITF Women Tsukuba | 2018/08/22 00:30 | Shiho Akita v Risa Ushijima | 2-6,2-6 |
| ITF Women Nonthaburi Qual | 2018/07/15 04:30 | Patcharin Cheapchandej v Risa Ushijima | 6-3,6-4 |
| ITF Women Nonthaburi Qual | 2018/07/14 06:25 | Rada Manataweewat v Risa Ushijima | 2-6,1-6 |
| ITF Women Nonthaburi | 2018/07/11 02:00 | Risa Ushijima v Na-Lae Han | 6-7,1-6 |
| ITF Women Nonthaburi | 2018/07/09 04:25 | Risa Ushijima v Nina Stadler | 6-3,7-6 |
| ITF Women Nonthaburi Qual | 2018/07/08 02:00 | Claudia Hoste Ferrer v Risa Ushijima | 2-6,1-6 |
| ITF Women Tsukuba | 2018/08/19 00:30 | Ange Oby Kajuru v Ayumi Koshiishi | 1-6,4-6 |
| ITF Women Nonthaburi | 2018/08/12 03:25 | Ange Oby Kajuru v Jia Qi Ren | 4-6,4-6 |
| ITF Women Nonthaburi | 2018/08/11 07:30 | Nudnida Luangnam v Ange Oby Kajuru | 4-6,7-6,2-6 |
| ITF Women Budapest Qual | 2018/07/07 13:25 | Cornelia Lister v Ange Oby Kajuru | 6-2,6-1 |
| ITF Women Jablonec Nad Nisou | 2018/06/26 08:00 | Alexandra Silna v Ange Oby Kajuru | 2-6,6-1,6-4 |
| ITF Women Kofu Qual | 2018/06/10 00:00 | Ange Oby Kajuru v Mana Kawamura | 6-7,4-6 |
| ITF Women Hua Hin | 2018/06/05 04:00 | Ange Oby Kajuru v Kaylah McPhee | 6-7,0-6 |
| ITF Women Hua Hin Qual | 2018/06/04 05:05 | Ange Oby Kajuru v Jia Qi Ren | 6-1,6-2 |