Stadium: Court 2 Round: 25 Ground: Clay
| ITF W25 Klosters | 2021/06/22 07:00 | Alexandra Vecic v Valentina Ryser | 5-7,6-1,5-7 |
| ITF W25 Madrid | 2021/06/08 07:15 | Olivia Gadecki v Valentina Ryser | 6-2,6-2 |
| ITF W25 Madrid | 2021/06/07 07:15 | Karolina Novakova v Valentina Ryser | 3-6,2-6 |
| ITF W25 Madrid | 2021/06/06 12:00 | Lucia Martinez Gomez v Valentina Ryser | 4-6,1-6 |
| ITF W15 Santa Margarita de Montbui | 2021/05/26 11:10 | Maria Bondarenko v Valentina Ryser | 6-3,7-6 |
| ITF W15 Jerusalem | 2021/05/15 09:00 | Shavit Kimchi v Valentina Ryser | 6-4,6-1 |
| ITF W15 Jerusalem | 2021/05/14 07:00 | Valentina Ryser v Nicole Khirin | 7-6,5-7,6-4 |
| ITF W15 Jerusalem | 2021/05/13 10:05 | Valentina Ryser v Noa Major | 6-3,6-4 |
| ITF W25 Grado | 2021/06/01 07:00 | Diana Marcinkevica v Cristiana Ferrando | 6-7,0-6 |
| ITF W25 Otocec | 2021/05/26 13:20 | Diana Marcinkevica v Sada Nahimana | 2-6,6-3,3-6 |
| ITF W25 Salinas | 2021/05/12 14:00 | Victoria Rodriguez v Diana Marcinkevica | 6-4,6-3 |
| ITF W25 Salinas | 2021/05/04 17:10 | Diana Marcinkevica v Ganna Poznikhirenko | 6-2,2-6,2-6 |
| ITF W25 Oeiras | 2021/04/30 12:30 | Diana Marcinkevica v Marina Melnikova | 1-6,6-4,3-6 |
| ITF W25 Oeiras | 2021/04/29 10:00 | Nina Stadler v Diana Marcinkevica | 6-7,5-7 |
| ITF W25 Oeiras | 2021/04/28 11:30 | Martina Spigarelli v Diana Marcinkevica | 6-7,1-6 |
| ITF W25 Oeiras | 2021/04/19 12:30 | Sofya Lansere v Diana Marcinkevica | 6-3,6-3 |