Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| WTA Columbus | 2021/09/20 20:10 | Mariam Bolkvadze v Kurumi Nara | 6-2,7-5 |
| US Open Women | 2021/08/26 18:00 | Elena-Gabriela Ruse v Kurumi Nara | 7-5,6-1 |
| US Open Women | 2021/08/24 18:20 | Kurumi Nara v Cagla Buyukakcay | 6-4,7-6 |
| ITF W100 Landisville | 2021/08/09 14:00 | Kurumi Nara v Alycia Parks | 2-6,2-6 |
| WTA Concord | 2021/08/02 17:00 | Lulu Sun v Kurumi Nara | 6-1,6-3 |
| Wimbledon Women | 2021/06/22 16:15 | Greet Minnen v Kurumi Nara | 6-3,6-7,6-1 |
| WTA Birmingham | 2021/06/13 14:35 | Caty McNally v Kurumi Nara | 6-3,6-0 |
| WTA Birmingham | 2021/06/12 14:45 | Naomi Broady v Kurumi Nara | 3-6,4-6 |
| ITF W60 Berkeley | 2021/09/28 19:05 | Hiroko Kuwata v Chanelle Van Nguyen | 6-3,7-5 |
| ITF W60 Berkeley | 2021/09/27 18:15 | Hiroko Kuwata v Kimmi Hance | 3-6,7-5,10-6 |
| ITF W25 Johannesburg | 2021/09/21 12:05 | Hiroko Kuwata v Suzan Lamens | 1-6,2-6 |
| ITF W60 Caldas da Rainha | 2021/09/13 11:00 | Eden Silva v Hiroko Kuwata | 1-6,7-6,10-6 |
| ITF W60 Caldas da Rainha | 2021/09/12 12:00 | Sofia Pinto v Hiroko Kuwata | 3-6,1-6 |
| ITF W25 Leiria | 2021/09/09 15:55 | Hiroko Kuwata v Lizette Cabrera | 2-6,1-6 |
| ITF W25 Leiria | 2021/09/07 10:00 | Ana Filipa Santos v Hiroko Kuwata | 1-6,2-6 |
| ITF W25 Bydgoszcz | 2021/08/03 08:00 | Hiroko Kuwata v Nastasja Schunk | 0-6,4-6 |