Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF W15 Monastir | 2021/08/24 08:30 | Riko Sawayanagi v Emma Van Poppel | 6-4,6-0 |
| ITF W15 Monastir | 2021/08/16 16:00 | Riko Sawayanagi v Aglaya Fedorova | 7-5,0-6,6-10 |
| ITF W15 Antalya | 2021/06/16 10:20 | Riko Sawayanagi v Jessie Aney | 5-7,1-6 |
| ITF W15 Antalya | 2021/06/15 07:30 | Riko Sawayanagi v Linda Sevcikova | 6-4,6-2 |
| ITF W15 Antalya | 2021/06/14 07:30 | Riko Sawayanagi v Mia Mack | 6-0,6-0 |
| ITF W15 Antalya | 2021/06/13 07:30 | Andreea Velcea v Riko Sawayanagi | 4-6,5-7 |
| ITF W15 Antalya | 2021/06/10 07:00 | Riko Sawayanagi v Maria F Herazo Gonzalez | 2-6,6-3,4-6 |
| ITF W15 Antalya | 2021/06/09 08:35 | Doga Turkmen v Riko Sawayanagi | 7-5,4-6,1-6 |
| ITF W15 Monastir | 2021/08/19 09:05 | Sakura Hondo v Maria Vittoria Viviani | 7-5,6-1 |
| ITF W15 Monastir | 2021/08/18 16:20 | Maria Vittoria Viviani v Asya Colombo | 6-4,7-6 |
| ITF W25 Pescara | 2021/08/01 11:00 | Tess Sugnaux v Maria Vittoria Viviani | 7-6,6-4 |
| ITF W15 Cordenons | 2021/07/26 07:00 | Maria Vittoria Viviani v Alexandra Vasilyeva | 6-7,6-4,7-10 |
| ITF W15 Sharm El Sheikh | 2021/02/07 09:30 | Maria Vittoria Viviani v Maja Radenkovic | 7-5,3-6,2-10 |
| ITF W15 Sharm El Sheikh | 2021/01/31 12:00 | Aya El Sayed v Maria Vittoria Viviani | 6-7,6-2,10-8 |
| ITF W15 Ortisei | 2020/11/03 09:45 | Kimberley Zimmermann v Maria Vittoria Viviani | 6-2,6-2 |
| Italian National Tour Women | 2020/06/29 13:20 | Federica Di Sarra v Maria Vittoria Viviani | 6-2,6-0 |