Stadium: Aterno Gas & Power Round: 25 Ground: Clay
| ITF W15 Heráklion | 2021/06/08 08:00 | Sofia Milatova v Maria Jose Portillo Ramirez | 6-7,6-1,1-6 |
| ITF W15 Heráklion | 2021/06/01 08:00 | Sofia Milatova v Isabella Harvison | 6-4,2-6,2-6 |
| ITF W25 Liepaja | 2021/05/25 10:00 | Jacqueline Cabaj Awad v Sofia Milatova | 6-1,6-1 |
| ITF W25 Liepaja | 2021/05/24 10:30 | Ksenia Kolesnikova v Sofia Milatova | 2-6,2-6 |
| ITF W15 Jeruzalém | 2021/05/12 12:20 | Sofia Milatova v Elena-Teodora Cadar | 3-6,6-3,2-6 |
| ITF W25 Jeruzalém | 2021/05/11 06:30 | Sofia Milatova v Anna Ozerova | 6-1,6-1 |
| ITF W15 Ramat ha-Šaron | 2021/05/06 07:00 | Sofia Milatova v Clara Vlasselaer | 7-6,5-7,2-6 |
| ITF W15 Ramat ha-Šaron | 2021/05/04 10:35 | Sofia Milatova v Liam Oved | 7-6,6-0 |
| ITF W25 Jönköping | 2021/06/14 08:10 | Darya Astakhova v Emily Seibold | 6-2,6-0 |
| ITF W25 Jönköping | 2021/06/13 13:00 | Nathalie Johansson v Emily Seibold | 2-6,3-6 |
| ITF W15 Heráklion | 2021/06/11 07:00 | Emily Seibold v Jessica Bouzas Maneiro | 2-6,1-6 |
| ITF W15 Heráklion | 2021/06/10 08:00 | Julia Stamatova v Emily Seibold | 2-6,0-6 |
| ITF W15 Heráklion | 2021/06/09 08:00 | Andreea Alexandra Lila v Emily Seibold | 3-6,1-6 |
| ITF W15 Heráklion | 2021/05/20 06:30 | Emily Seibold v Eva Lys | 4-6,1-6 |
| ITF W15 Heráklion | 2021/05/19 06:30 | Franziska Sziedat v Emily Seibold | 4-6,2-6 |
| ITF W25 Oeiras | 2021/04/25 11:30 | Emily Seibold v Kamilla Bartone | 7-6,1-6,9-11 |