| UTR Pro Tennis Series Beograd | 2021/07/06 09:00 | Dusan Milanovic v Luka Vukovic | 6-2,5-2 |
| UTR Pro Tennis Series Beograd | 2021/07/05 10:30 | Giacomo Revelli v Dusan Milanovic | 6-3,1-6,6-7 |
| ITF M25 Belgrade | 2021/06/30 10:05 | Dusan Milanovic v Rrezart Cungu | 2-6,5-7 |
| ITF M25 Belgrade | 2021/06/29 08:40 | Leonid Sheyngezikht v Dusan Milanovic | 6-3,4-6,10-12 |
| ITF M25 Belgrade | 2021/06/28 10:00 | Dusan Milanovic v Egor Noskin | 6-4,6-4 |
| ITF M25 Belgrade | 2021/06/27 09:00 | Benjamin Niv v Dusan Milanovic | 3-6,4-6 |
| ITF M15 Brcko | 2021/05/21 06:55 | Dusan Milanovic v Joao Lucas Reis da Silva | 4-6,4-6 |
| ITF M15 Brcko | 2021/05/18 09:30 | Dusan Milanovic v Pavle Daljev | 6-0,6-4 |
| UTR Pro Tennis Series Beograd | 2021/07/05 10:30 | Alex Kuperstein v Alexander Lazov | 6-4,7-5 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/11 10:00 | Alexander Lazov v Constant De La Bassetiere | 5-7,1-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/10 13:30 | Alexander Lazov v Aristotelis Thanos | 6-4,5-4 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/09 14:00 | Mick Lescure v Alexander Lazov | 6-3,3-6,6-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/08 10:00 | Gergely Madarasz v Alexander Lazov | 6-4,7-5 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/06 08:30 | Jules Marie v Alexander Lazov | 6-1,6-4 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/05 11:30 | Alexander Lazov v Yanais Laurent | 0-6,6-1,6-4 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/03 08:30 | Alexander Lazov v Dinko Dinev | 6-7,2-6 |