| ITF W15 Sozopol | 2021/10/13 09:00 | Vanessa I G Popa Teiusanu v Gebriela Mihaylova | 0-6,6-7 |
| ITF W15 Sozopol | 2021/10/06 08:00 | Gebriela Mihaylova v Ani Vangelova | 3-6,3-6 |
| ITF W15 Sozopol | 2021/09/14 09:00 | Denislava Glushkova v Gebriela Mihaylova | 6-1,6-3 |
| ITF W15 Varna | 2021/09/09 10:25 | Martha Matoula v Gebriela Mihaylova | 6-3,6-1 |
| ITF W15 Varna | 2021/09/07 06:30 | Margarita Ignatjeva v Gebriela Mihaylova | 4-6,6-7 |
| ITF W15 Prokuplje | 2021/07/06 07:00 | Karola Bejenaru v Gebriela Mihaylova | 6-4,6-1 |
| ITF W15 Prokuplje | 2021/07/04 07:00 | Graziella Barrett v Gebriela Mihaylova | 0-6,0-6 |
| ITF W15 Prokuplje | 2021/06/27 11:00 | Gebriela Mihaylova v Noka Juric | 4-6,3-6 |