Stadium: Court 3 Round: 25 Ground: Clay
| 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 Oeiras | 2021/04/27 11:00 | Ekaterina Makarova v Anna Siskova | 6-3,3-6,6-0 |
| ITF - W15 Sharm El Sheikh | 2021/04/10 07:00 | Ya-Hsuan Lee v Anna Siskova | 0-6,6-2,6-4 |
| ITF - W15 Sharm El Sheikh | 2021/04/09 08:35 | Hourigan, Paige Mary v Anna Siskova | 1-6,6-4,2-6 |
| ITF - W15 Sharm El Sheikh | 2021/04/08 09:15 | Haine Ogata v Anna Siskova | 2-6,2-6 |
| ITF W25 Jonkoping | 2021/06/18 09:15 | Astakhova, Darya v Ferrando, Cristiana | 3-6,6-2,7-5 |
| ITF W25 Jonkoping | 2021/06/17 09:10 | Caijsa W Hennemann v Ferrando, Cristiana | 6-7,6-4,5-7 |
| ITF W25 Jonkoping | 2021/06/16 08:10 | Oana Georgeta Simion v Ferrando, Cristiana | 5-7,4-6 |
| ITF W25 Jonkoping | 2021/06/14 11:30 | Ferrando, Cristiana v Rubini, Stefania | 6-2,7-5 |
| ITF W25 Grado | 2021/06/03 10:50 | Susan Bandecchi v Ferrando, Cristiana | 6-0,7-5 |
| ITF W25 Grado | 2021/06/01 07:00 | Diana Marcinkevica v Ferrando, Cristiana | 6-7,0-6 |
| ITF W25 Grado | 2021/05/31 10:30 | Ferrando, Cristiana v Marfutina, Maria | 6-4,6-3 |
| ITF W25 Otocec | 2021/05/27 09:35 | Federica Di Sarra v Ferrando, Cristiana | 7-6,7-5 |