Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| ITF W25 Wroclaw | 2021/06/29 10:10 | Nuria Brancaccio v Anna Siskova | 5-7,7-6,6-3 |
| ITF W25 Perigueux | 2021/06/25 09:00 | Anna Siskova v Lucia Bronzetti | 2-6,4-6 |
| ITF W25 Perigueux | 2021/06/24 08:00 | Polina Leykina v Anna Siskova | 2-6,3-6 |
| ITF W25 Perigueux | 2021/06/22 13:50 | Anna Siskova v Ferrando, Cristiana | 6-4,6-3 |
| ITF W60 Stare Splavy | 2021/06/14 08:00 | Anna Siskova v Andreea Prisacariu | 4-6,6-3,8-10 |
| ITF W25 Naples | 2021/05/05 20:55 | Stewart, Katerina v Anna Siskova | 1-6,6-2,6-3 |
| ITF W25 Naples | 2021/05/04 16:45 | Anna Siskova v Sysoeva, Anastasia | 6-1,6-2 |
| ITF W25 Naples | 2021/05/03 15:00 | Anna Siskova v Maribella Zamarripa | 6-2,6-2 |
| ITF W25 Porto | 2021/06/24 14:10 | Sofya Lansere v Guttierez Carrasco, Maria | 3-6,5-7 |
| ITF W25 Porto | 2021/06/22 14:30 | Sofya Lansere v Fonte, Maria Ines | 6-1,6-0 |
| ITF W25 Figueira Da Foz | 2021/06/15 10:25 | Sofya Lansere v Hozumi, Eri | 3-6,1-6 |
| ITF W25 Kazan | 2021/06/02 10:35 | Sofya Lansere v Koval, Vlada | 4-6,4-6 |
| ITF W25 Otocec | 2021/05/26 08:00 | Ziva Falkner v Sofya Lansere | 6-4,6-1 |
| ITF W25 Platja D’Aro | 2021/05/19 14:00 | Jessica Bouzas Maneiro v Sofya Lansere | 7-6,6-3 |
| ITF W60 La Bisbal | 2021/05/09 12:15 | Stokke, Melanie v Sofya Lansere | 6-3,6-0 |
| ITF W60 Zagreb | 2021/04/25 14:10 | Yerolymos, Margot v Sofya Lansere | 7-6,6-2 |