Stadium: Court 1 Round: 25 Ground: Clay
| ITF M15 Skopje | 2021/06/01 09:30 | Rrezart Cungu v Admir Kalender | 0-6,3-6 |
| ITF M15 Antalya | 2021/11/09 10:35 | Francesco Ferrari v Admir Kalender | 2-6,2-6 |
| ITF M15 Antalya | 2021/11/08 12:50 | Luca Fantini v Admir Kalender | 1-6,6-3,8-10 |
| ITF M15 Antalya | 2021/11/07 06:30 | Mile Matic v Admir Kalender | 1-6,4-6 |
| ITF M15 Antalya | 2021/11/02 08:30 | Anthony Genov v Admir Kalender | 6-4,6-4 |
| ITF M15 Antalya | 2021/10/31 07:00 | Jannik Opitz v Admir Kalender | 6-4,3-6,8-10 |
| Challenger Losinj | 2021/10/17 10:00 | Admir Kalender v Fabien Reboul | 6-7,0-6 |
| UTR Pro Tennis Series Zadar | 2021/10/03 09:30 | Admir Kalender v Christos Keisidis | 6-2,6-0 |
| UTR Pro Tennis Series Zadar | 2021/10/02 08:30 | Admir Kalender v Petar Pjevcevic | 6-3,6-1 |
| ITF M15 Antalya | 2021/11/03 10:55 | Rrezart Cungu v Sergey Fomin | 6-7,4-6 |
| ITF M15 Antalya | 2021/11/03 06:00 | Rrezart Cungu v Pedro Iamachkine | 6-4,3-6,7-10 |
| ITF M15 Antalya | 2021/11/02 08:30 | Rrezart Cungu v Dmitrii Vasilev | 6-3,6-3 |
| ITF M15 Antalya | 2021/10/29 07:00 | Rrezart Cungu v Felix Gill | 6-1,3-6,4-6 |
| ITF M15 Antalya | 2021/10/28 07:00 | Alexander Weis v Rrezart Cungu | 4-6,5-7 |
| ITF M15 Antalya | 2021/10/27 12:25 | Koray Kirci v Rrezart Cungu | 2-6,6-1,1-6 |
| ITF M25 Skopje | 2021/09/29 09:05 | Rrezart Cungu v Stefano Battaglino | 0-6,6-2,4-6 |
| ITF M15 Ulcinj | 2021/09/26 08:55 | Rrezart Cungu v Samuel Vincent Ruggeri | 6-3,2-6,6-1 |