Stadium: Court 8 Round: 54 Ground: Clay
| ITF W25 Pune | 2021/12/21 04:00 | Hiroko Kuwata v Chihiro Muramatsu | 5-7,3-6 |
| ITF W60 Las Vegas | 2021/10/07 17:00 | Hiroko Kuwata v Emina Bektas | 3-6,6-7 |
| ITF W60 Las Vegas | 2021/10/06 18:35 | Holly Verner v Hiroko Kuwata | 0-6,1-6 |
| ITF W60 Berkeley | 2021/09/29 17:00 | Kurumi Nara v Hiroko Kuwata | 7-6,7-5 |
| 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 W100 Dubai | 2021/11/21 11:15 | Renata Voracova v Marianna Zakarlyuk | 4-6,6-3,10-2 |
| ITF W25 Karaganda | 2021/10/29 07:25 | Marianna Zakarlyuk v Viktoria Morvayova | 3-6,0-6 |
| ITF W25 Karaganda | 2021/10/28 04:50 | Gozal Ainitdinova v Marianna Zakarlyuk | 2-6,2-6 |
| ITF W25 Karaganda | 2021/10/27 05:00 | Marianna Zakarlyuk v Valeriya Yushchenko | 7-5,7-5 |
| ITF W25 Karaganda | 2021/10/20 06:25 | Anastasia Kovaleva v Marianna Zakarlyuk | 6-2,6-4 |
| UTR Pro Tennis Series Zadar Women | 2021/08/13 08:00 | Marianna Zakarlyuk v Zdena Safarova | 7-5,2-5 |
| UTR Pro Tennis Series Zadar Women | 2021/08/12 10:30 | Marianna Zakarlyuk v Zuzana Zlochova | 1-6,2-6 |
| UTR Pro Tennis Series Zadar Women | 2021/08/11 09:30 | Katarina Zuzul v Marianna Zakarlyuk | 1-6,3-6 |