Stadium: Court 4 Round: 26 Ground: Hardcourt indoor
| ITF M15 Tallahassee | 2021/10/27 17:00 | John McNally v Jack Anthrop | 6-7,6-2,6-4 |
| ITF - M15 Fayetteville | 2021/09/23 19:45 | John McNally v Pedro Vives Marcos | 6-3,3-6,2-6 |
| ITF - M15 Fayetteville | 2021/09/22 14:55 | John McNally v Nicolas Rousset | 7-5,6-4 |
| ITF - M15 Champaign | 2021/09/18 15:00 | John McNally v Martin Damm | 7-6,6-7,3-6 |
| ITF - M15 Champaign | 2021/09/17 15:00 | John McNally v Omni Kumar | 5-7,6-4,6-2 |
| ITF - M15 Champaign | 2021/09/16 15:00 | John McNally v Yasha Zemel | 6-3,7-6 |
| ITF - M15 Champaign | 2021/09/15 16:55 | John McNally v Jake Van Emburgh | 6-4,7-6 |
| ITF M25 - Tulsa | 2021/06/16 01:10 | John McNally v Sekou Bangoura | 6-7,6-3,4-6 |
| ITF M15 Tallahassee | 2021/10/27 18:00 | Liam Draxl v Vasil Kirkov | 3-6,3-6 |
| ITF - M25 Praag | 2021/10/07 13:00 | Timo Stodder v Vasil Kirkov | 6-2,6-1 |
| ITF - M25 Praag | 2021/10/06 07:55 | Vasil Kirkov v Adam Januska | 6-0,6-0 |
| ITF - M25 Falun | 2021/10/01 14:30 | Vasil Kirkov v Shintaro Imai | 2-6,5-7 |
| ITF - M25 Falun | 2021/09/30 14:20 | Antoine Escoffier v Vasil Kirkov | 6-3,4-6,4-6 |
| ITF - M25 Falun | 2021/09/29 15:20 | Vasil Kirkov v Leopold Zima | 6-4,6-4 |
| ITF - M25 Falun | 2021/09/27 12:00 | Sergey Fomin v Vasil Kirkov | 3-6,2-6 |
| ITF - M25 Plaisir | 2021/09/17 11:30 | Thomas Laurent v Vasil Kirkov | 6-7,1-6 |