Stadium: Court 17 Round: 25 Ground: Clay
| ITF W25 Aparecida De Goiania | 2021/11/08 12:00 | Sofia Da Cruz Mendonca v Julia R D M Moraes | 7-6,6-1 |
| ITF W25 Rio do Sul | 2021/10/21 11:45 | Sofia Da Cruz Mendonca v Gatica, Barbara | 1-6,3-6 |
| ITF W25 Rio do Sul | 2021/10/19 12:00 | Sofia Da Cruz Mendonca v Vivian Mayumi Toma | 6-0,6-0 |
| ITF W25 Rio do Sul | 2021/10/18 14:50 | Sofia Da Cruz Mendonca v Bloot, Maria Luisa Cusma | 6-3,6-0 |
| ITF W15 Piracicaba | 2021/10/14 15:35 | Sofia Da Cruz Mendonca v Juliana Munhoz | 1-6,1-6 |
| ITF W15 Piracicaba | 2021/10/13 13:30 | Sofia Da Cruz Mendonca v Giovanna Gomes Ferreira | 6-2,6-4 |
| ITF - W15 Monastir | 2021/06/28 10:30 | Humera Baharmus v Sofia Da Cruz Mendonca | 3-6,6-2,10-8 |
| ITF - W15 Monastir | 2021/06/21 11:30 | Sofia Da Cruz Mendonca v Gina Marie Dittmann | 6-7,4-6 |
| ITF W25 Istanbul | 2021/10/27 11:10 | Anna Siskova v Anna Turati | 1-6,5-7 |
| ITF W25 Istanbul | 2021/10/25 13:15 | Anna Siskova v Jacqueline Cabaj Awad | 6-0,6-4 |
| ITF W25 Lima | 2021/10/15 15:00 | Anna Siskova v Gerlach, Katharina | 1-6,1-6 |
| ITF W25 Lima | 2021/10/14 16:50 | Tatjana Maria v Anna Siskova | 0-6,7-6,3-6 |
| ITF W25 Lima | 2021/10/13 15:00 | Alexandra Vecic v Anna Siskova | 6-0,3-6,1-6 |
| ITF W25 Lima | 2021/10/10 15:00 | Anna Siskova v Dea Herdzelas | 3-6,7-5,6-0 |
| ITF W25 Lima | 2021/10/09 15:00 | Carolina Alves v Anna Siskova | 6-4,3-6,1-6 |
| ITF W25 Lima | 2021/10/08 16:30 | Anna Siskova v Bibiane Schoofs | 3-6,6-4,6-2 |