| UTR Pro Tennis Series - Amsterdam | 2021/11/06 09:00 | Lawrence Bataljin v Edison Ambarzumjan | 3-6,6-2,1-6 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/05 09:00 | Edison Ambarzumjan v Rik Muller | 2-6,6-2,0-5 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/04 10:30 | Edison Ambarzumjan v Deney Wassermann | 4-6,4-6 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/03 13:30 | Ivan Denisov v Edison Ambarzumjan | 6-2,6-3 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/02 10:30 | Michiel de Krom v Edison Ambarzumjan | 6-1,6-1 |
| UTR Pro Tennis Series Mülheim | 2021/10/16 14:00 | Edison Ambarzumjan v Jose Antonio Rodriguez Rodriguez | 2-6,2-6 |
| UTR Pro Tennis Series Mülheim | 2021/10/14 13:00 | Edison Ambarzumjan v Tim Sandkaulen | 3-6,0-5 |
| UTR Pro Tennis Series Mülheim | 2021/10/13 10:00 | Edison Ambarzumjan v Yurii Dzhavakian | 3-6,4-6 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/06 09:00 | Teun Rozenberg v Tom Clavel | 6-3,4-3 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/05 12:00 | Teun Rozenberg v Max Houkes | 7-6,2-6,3-6 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/04 09:00 | Teun Rozenberg v Thorsten Sollie | 1-6,4-6 |
| ITF M15 Oldenzaal | 2021/08/16 10:00 | Teun Rozenberg v Felipe Derdoy | 6-7,7-5,10-12 |
| ITF M15 Oldenzaal | 2021/08/15 09:30 | Joppe Van Malderen v Teun Rozenberg | 1-6,3-6 |