| UTR Pro Tennis Series Nis | 2021/10/05 14:00 | Aleksa Mardjonovic v Christos Keisidis | 2-6,7-5,6-4 |
| UTR Pro Tennis Series - Beograd | 2022/10/13 07:30 | Christos Keisidis v Luka Pavlovic | 0-6,3-5 |
| UTR Pro Tennis Series - Beograd | 2022/10/12 06:00 | Dragos Dima v Christos Keisidis | 6-3,6-2 |
| UTR Pro Tennis Series - Beograd | 2022/10/11 07:30 | Stefan Micov v Christos Keisidis | 3-6,4-6 |
| UTR Pro Tennis Series Mulheim | 2022/10/08 15:42 | Christos Keisidis v Lukas Maskow | 6-2,2-6,3-6 |
| UTR Pro Tennis Series Mulheim | 2022/10/07 12:06 | Christos Keisidis v Mikalai Haliak | 3-6,3-6 |
| UTR Pro Tennis Series Mulheim | 2022/10/06 07:30 | Christos Keisidis v Aaron James Williams | 4-6,2-5 |
| UTR Pro Tennis Series Mulheim | 2022/10/05 10:30 | Hugo Pierre v Christos Keisidis | 6-3,5-2 |
| UTR Pro Tennis Series Mulheim | 2022/10/04 06:00 | Jeremy Jahn v Christos Keisidis | 6-3,6-2 |
| UTR Pro Tennis Series - Beograd | 2022/10/13 09:00 | Dragos Dima v Aleksa Mardjonovic | 6-3,6-0 |
| UTR Pro Tennis Series - Beograd | 2022/10/12 09:00 | Stefan Micov v Aleksa Mardjonovic | 6-3,6-7,4-6 |
| UTR Pro Tennis Series - Beograd | 2022/10/10 06:00 | Luka Pavlovic v Aleksa Mardjonovic | 6-1,6-1 |
| ITF M15 Zlatibor | 2022/09/13 11:40 | Alen Moritz Hodzic v Aleksa Mardjonovic | 6-3,6-0 |
| ITF M15 Zlatibor | 2022/09/11 11:00 | Aleksa Mardjonovic v Stevan Popovic | 7-6,7-5 |
| ITF M15 Novi Sad | 2022/07/31 09:45 | Josh Reid v Aleksa Mardjonovic | 6-1,7-6 |
| ITF M15 Novi Sad | 2022/07/24 12:15 | Sasa Markovic v Aleksa Mardjonovic | 7-6,6-2 |
| ITF M15 Belgrade | 2022/06/26 13:00 | Aleksa Mardjonovic v Bogdan Pavel | 0-6,1-6 |