Stadium: Court A9 Round: 25 Ground: Synthetic outdoor
| ITF Women Nanao | 2017/08/31 01:00 | Miharu Imanishi v Megumi Nishimoto | 6-0,6-4 |
| ITF Women Nanao | 2018/08/27 01:00 | Megumi Nishimoto v Sakura Hosogi | 6-2,6-2 |
| ITF Women Tsukuba | 2018/08/20 02:50 | Michika Ozeki v Megumi Nishimoto | 6-3,7-5 |
| ITF Women Tsukuba | 2018/08/19 03:00 | Akari Inoue v Megumi Nishimoto | 5-7,4-6 |
| ITF Women Daegu | 2018/06/20 05:20 | Megumi Nishimoto v Ching-Wen Hsu | 4-6,1-6 |
| ITF Women Karuizawa Qual | 2018/05/21 02:20 | Megumi Nishimoto v Eri Shimizu | 2-6,6-7 |
| ITF Women Kurume Qual | 2018/05/15 01:00 | Megumi Nishimoto v Anastasia E Nefedova | 6-4,5-7,1-6 |
| ITF Women Kurume Qual | 2018/05/14 01:00 | Mihoki Miyahara v Megumi Nishimoto | 6-2,6-7,1-6 |
| ITF Women Kurume Qual | 2018/05/13 09:10 | Kyoka Kusano v Megumi Nishimoto | 0-6,0-6 |
| ITF Women Tsukuba | 2018/08/22 03:20 | Mai Hontama v Miharu Imanishi | 6-1,6-0 |
| Wimbledon Women Qual | 2018/06/26 13:20 | Dalila Jakupovic v Miharu Imanishi | 6-2,6-2 |
| ITF Women Ilkley Qual | 2018/06/19 10:00 | Miharu Imanishi v Maria Sanchez | 2-6,7-5,2-6 |
| ITF Women Ilkley Qual | 2018/06/18 11:00 | Miharu Imanishi v Eden Silva | 6-3,6-3 |
| ITF Women Ilkley Qual | 2018/06/17 13:35 | Miharu Imanishi v Sophie Chang | 7-6,6-4 |
| WTA Nottingham Qual | 2018/06/09 13:45 | Miharu Imanishi v Tara Moore | 2-6,3-6 |
| French Open Women Qual | 2018/05/22 13:40 | Miharu Imanishi v Richel Hogenkamp | 2-6,0-6 |
| ITF Women Gifu | 2018/05/04 01:00 | Nao Hibino v Miharu Imanishi | 2-6,7-6,6-1 |