Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF W25 Porto | 2021/06/21 18:00 | Celia Cervino Ruiz v Lulu Sun | 1-6,0-6 |
| ITF W25 Porto | 2021/06/21 15:00 | Celia Cervino Ruiz v Carolina Azadinho | 6-0,6-2 |
| ITF W25 Madrid | 2021/06/16 07:00 | Celia Cervino Ruiz v Anastasia Kulikova | 4-6,3-6 |
| ITF W25 Madrid | 2021/06/07 07:15 | Cristina Dinu v Celia Cervino Ruiz | 6-4,6-1 |
| ITF W25 Madrid | 2021/06/06 12:00 | Himari Sato v Celia Cervino Ruiz | 3-6,5-7 |
| ITF W15 Santa Margarita de Montbui | 2021/05/30 09:30 | Celia Cervino Ruiz v Justina Mikulskyte | 2-6,0-6 |
| ITF W15 Santa Margarita de Montbui | 2021/05/29 08:30 | Oksana Selekhmeteva v Celia Cervino Ruiz | 5-7,6-4,4-6 |
| ITF W15 Santa Margarita de Montbui | 2021/05/28 10:15 | Celia Cervino Ruiz v Mihaela Djakovic | 7-6,2-6,7-6 |
| Wimbledon Women | 2021/06/23 12:10 | Sachia Vickery v Chihiro Muramatsu | 6-3,4-6,6-1 |
| ITF W25 Figueira Da Foz | 2021/06/16 16:10 | Yuriko Lily Miyazaki v Chihiro Muramatsu | 7-5,6-2 |
| ITF W25 Montemor-O-Novo | 2021/06/09 16:30 | Francisca Jorge v Chihiro Muramatsu | 6-3,6-4 |
| ITF W25 Otocec | 2021/06/02 09:40 | Chihiro Muramatsu v Allie Kiick | 3-6,4-6 |
| ITF W25 Platja D’Aro | 2021/05/18 14:10 | Amandine Hesse v Chihiro Muramatsu | 6-1,6-4 |
| ITF W60 La Bisbal | 2021/05/11 08:00 | Kateryna Baindl v Chihiro Muramatsu | 6-4,7-5 |
| ITF W25 Oeiras | 2021/04/21 12:30 | Lea Boskovic v Chihiro Muramatsu | 6-2,6-2 |
| Billie Jean King Cup | 2021/04/16 08:00 | Elina Svitolina v Chihiro Muramatsu | 6-3,6-2 |