| UTR Pro Tennis Series Mulheim | 2021/09/21 08:00 | Edison Ambarzumjan v Christos Keisidis | 6-2,4-6,5-1 |
| ITF M15 Dubrovnik | 2022/04/06 09:25 | Bogdan Ionut Apostol v Edison Ambarzumjan | 6-3,7-6 |
| ITF M15 Dubrovnik | 2022/04/05 09:30 | Radomir Tomic v Edison Ambarzumjan | 6-4,2-6,10-12 |
| ITF M15 Dubrovnik | 2022/04/04 13:00 | Edison Ambarzumjan v Petar Pjevcevic | 6-4,2-6,10-5 |
| ITF M15 Dubrovnik | 2022/04/04 09:00 | Edison Ambarzumjan v Ighor Halmenschlager Reis | 6-3,6-4 |
| ITF M15 Palmanova | 2022/03/21 11:30 | Edison Ambarzumjan v Dax Donders | 3-6,3-6 |
| ITF M15 Palmanova | 2022/03/20 13:30 | Joan B B Isern v Edison Ambarzumjan | 7-5,2-6,10-12 |
| ITF M25 Rovinj | 2022/03/14 13:10 | Sebastian Gima v Edison Ambarzumjan | 6-1,6-1 |
| UTR Pro Tennis Series Dobrich | 2022/02/27 09:00 | Anthony Genov v Edison Ambarzumjan | 4-6,2-6 |
| UTR Pro Tennis Series Zadar | 2021/11/19 09:00 | Deni Zmak v Christos Keisidis | 6-1,6-0 |
| UTR Pro Tennis Series Zadar | 2021/11/18 10:30 | Christos Keisidis v Alexander Chepik | 6-3,6-2 |
| UTR Pro Tennis Series Zadar | 2021/11/16 09:00 | Christos Keisidis v Denis Parshutin | 6-3,6-7,6-3 |
| UTR Pro Tennis Series Zadar | 2021/11/15 12:00 | Olexiy Kolisnyk v Christos Keisidis | 7-5,3-6,4-6 |
| UTR Pro Tennis Series Nis | 2021/10/10 08:00 | Christos Keisidis v Vladimir Popov | 6-1,5-2 |
| UTR Pro Tennis Series Nis | 2021/10/09 11:00 | Christos Keisidis v Lawrence Bataljin | 6-4,6-2 |
| UTR Pro Tennis Series Nis | 2021/10/08 15:45 | Dusan Trunic v Christos Keisidis | 2-6,2-5 |
| UTR Pro Tennis Series Nis | 2021/10/07 08:30 | George Botezan v Christos Keisidis | 6-3,6-3 |