Stadium: Court 1 Round: 26 Ground: Clay
| ITF M15 Opatija | 2021/03/23 12:30 | Alexandar Lazarov v Sebastian Prechtel | 6-7,4-6 |
| ITF M15 Rovinj | 2021/03/18 10:10 | Martin Damm v Alexandar Lazarov | 6-1,5-7,6-4 |
| ITF M15 Rovinj | 2021/03/17 10:50 | Alexandar Lazarov v Uladzimir Ignatik | 6-4,4-6,7-5 |
| ITF M15 Porec | 2021/03/12 09:00 | Damien Wenger v Alexandar Lazarov | 7-6,6-0 |
| ITF M15 Porec | 2021/03/11 09:00 | Gergely Madarasz v Alexandar Lazarov | 1-6,3-6 |
| ITF M15 Porec | 2021/03/10 09:00 | Alexandar Lazarov v Vaclav Safranek | 7-5,6-4 |
| ITF M15 Antalya | 2021/02/01 14:50 | Alexandar Lazarov v Raul Brancaccio | 6-7,5-7 |
| ITF M15 Antalya | 2021/01/31 14:35 | Arthur Fils v Alexandar Lazarov | 1-6,1-6 |
| ITF M15 Antalya | 2021/03/16 09:30 | Dan Alexandru Tomescu v Luca Tomasetto | 7-6,3-6,8-10 |
| ITF M15 Antalya | 2021/03/15 08:00 | Dan Alexandru Tomescu v Arsenije Zlatanovic | 7-6,6-2 |
| ITF M15 Antalya | 2021/03/14 07:00 | Dan Alexandru Tomescu v Rafael Giotis | 6-0,6-2 |
| ITF M15 Antalya | 2021/03/07 07:00 | Dan Alexandru Tomescu v Bautista Vilicich | 7-6,5-7,6-10 |
| ITF M15 Antalya | 2021/02/08 07:00 | Dan Alexandru Tomescu v Davide Galoppini | 6-1,1-6,4-10 |
| ITF M15 Antalya | 2021/02/07 06:00 | Dan Alexandru Tomescu v Koray Kirci | 6-3,6-1 |
| ITF M15 Antalya | 2021/02/03 13:35 | Khumoyun Sultanov v Dan Alexandru Tomescu | 4-6,6-3,7-6 |
| ITF M15 Antalya | 2021/02/03 06:30 | Jonathan Mridha v Dan Alexandru Tomescu | 6-1,6-7,11-13 |