Stadium: Court 12 Round: 25 Ground: Hardcourt outdoor
| 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 Ramat Hasharon | 2021/05/03 07:00 | Alec Beckley v Toby D. Boyer | 4-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/04/08 09:05 | Toby D. Boyer v Luke Johnson | 7-6,1-6,3-6 |
| ITF M15 Sharm El Sheikh | 2021/04/07 12:00 | Michal Novansky v Toby D. Boyer | 3-6,6-7 |
| ITF M15 Sharm El Sheikh | 2021/03/31 16:05 | Toby D. Boyer v Nicolas Moreno De Alboran | 4-6,6-7 |
| ITF M15 Sharm El Sheikh | 2021/03/30 07:30 | Andrew Paulson v Toby D. Boyer | 3-6,1-6 |
| ITF M15 Sharm El Sheikh | 2021/03/29 07:30 | Toby D. Boyer v Matas Vasiliauskas | 7-5,6-1 |
| ITF M15 Sharm El Sheikh | 2021/03/28 07:00 | Takuya Kumasaka v Toby D. Boyer | 3-6,3-6 |
| ITF M15 Sharm El Sheikh | 2021/03/22 13:00 | Toby D. Boyer v Karlo Cubelic | 1-6,4-6 |