| ITF M15 Sofia | 2021/07/06 11:05 | Francisco Comesana v Vasil Kirkov | 6-3,6-2 |
| ITF - M15 Champaign | 2021/06/23 19:10 | Vasil Kirkov v Kyle Seelig | 6-4,3-6,6-7 |
| ITF M25 - Tulsa | 2021/06/15 14:00 | Vasil Kirkov v Michael Shabaz | 3-6,6-1,7-10 |
| ITF M25 - Tulsa | 2021/06/14 15:00 | Vasil Kirkov v Errol Smith | 6-4,6-4 |
| ITF - M15 Heraklion | 2020/11/26 07:30 | Henry Patten v Vasil Kirkov | 6-4,6-1 |
| ITF - M15 Heraklion | 2020/11/25 09:55 | Vasil Kirkov v Lucas Catarina | 2-6,6-2,6-4 |
| ITF - M15 Heraklion | 2020/11/18 12:15 | Vasil Kirkov v Sho Shimabukuro | 2-6,6-3,4-6 |
| ITF - M15 Heraklion | 2020/11/17 07:30 | Vasil Kirkov v Billy Harris | 4-6,6-0,10-7 |