Stadium: Court 3 Round: 25 Ground: Synthetic outdoor
| Hiroshima, Japon | 2018/09/09 07:40 | Urszula Radwanska v Imanishi, Miharu | 7-6,6-1 |
| WTA Tokyo | 2018/09/15 10:45 | Dabrowski, Gabriela v Imanishi, Miharu | 6-3,6-2 |
| Hiroshima, Japon | 2018/09/09 07:40 | Urszula Radwanska v Imanishi, Miharu | 7-6,6-1 |
| ITF Women Nanao | 2018/08/30 03:00 | Mai Hontama v Imanishi, Miharu | 7-6,5-7,6-2 |
| ITF Women Nanao | 2018/08/29 03:30 | Nishimoto, Megumi v Imanishi, Miharu | 7-5,4-6,2-6 |
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/22 03:20 | Mai Hontama v Imanishi, Miharu | 6-1,6-0 |
| Wimbledon Women Qual | 2018/06/26 13:20 | Dalila Jakupovic v Imanishi, Miharu | 6-2,6-2 |
| ITF Women Ilkley Qual | 2018/06/19 10:00 | Imanishi, Miharu v Sanchez, Maria | 2-6,7-5,2-6 |
| ITF Women Ilkley Qual | 2018/06/18 11:00 | Imanishi, Miharu v Eden Silva | 6-3,6-3 |
| Hiroshima, Japon | 2018/09/09 11:30 | Amanda Anisimova v Urszula Radwanska | 6-1,3-6,6-4 |
| Hiroshima, Japon | 2018/09/09 07:40 | Urszula Radwanska v Imanishi, Miharu | 7-6,6-1 |
| Chiswick, Simples W-WITF-GBR-13A | 2018/08/07 12:00 | Malmqvist, Linnea v Urszula Radwanska | 7-5,7-5 |
| Astana, Singles W-WITF-KAZ-05A | 2018/07/17 06:20 | Urszula Radwanska v Marie Bouzkova | 6-2,3-6,5-7 |
| s-Hertogenbosch, Netherlands, Qualifying | 2018/06/09 08:30 | Lottner, Antonia v Urszula Radwanska | 2-6,7-5,7-5 |
| Obidos, Singles W-WITF-POR-12A | 2018/06/01 11:25 | Ylena In-Albon v Urszula Radwanska | 6-3,6-3 |
| Obidos, Singles W-WITF-POR-12A | 2018/05/31 16:05 | Berfu Cengiz v Urszula Radwanska | 1-6,4-6 |
| Obidos, Singles W-WITF-POR-12A | 2018/05/30 13:55 | Ochsner, Svenja v Urszula Radwanska | 6-3,4-6,1-6 |