| UTR Pro Tennis Series Pazardzhik | 2021/07/12 06:00 | Vladimir Popov v Vasil Kirkov | 2-6,4-6 |
| 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 M25 Belgrád | 2021/07/01 09:40 | Quentin Folliot v Gorazd Srbljak | 3-6,6-4,6-1 |
| ITF M25 Belgrád | 2021/06/30 09:00 | Marko Miladinovic v Gorazd Srbljak | 3-6,4-6 |
| ITF M25 Belgrád | 2021/06/29 09:20 | Edoardo Lavagno v Gorazd Srbljak | 6-0,6-3 |
| ITF M25 Belgrád | 2021/06/28 10:00 | Nicolas Bruna v Gorazd Srbljak | 2-6,3-6 |
| Davis Kupa | 2021/06/26 09:15 | Gorazd Srbljak v Maxim Cazac | 6-1,6-0 |
| Davis Kupa | 2021/06/24 09:30 | Gorazd Srbljak v Marco De Rossi | 1-6,6-3,1-6 |
| Davis Kupa | 2021/06/23 09:15 | Gorazd Srbljak v Eric Cervos Noguer | 6-0,6-1 |
| Davis Kupa | 2021/06/22 09:10 | Gorazd Srbljak v Fresk Sylhasi | 6-0,6-1 |