Stadium: Court 5 Round: 62 Ground: Clay
| ITF M15 Antalya | 2020/12/15 07:00 | Mile Matic v Admir Kalender | 3-6,6-7 |
| UTR Pro Tennis Series Zadar | 2021/10/03 08:00 | Stefanos Sakellaridis v Mile Matic | 5-7,4-5 |
| UTR Pro Tennis Series Zadar | 2021/10/02 07:00 | Maxim Krapivin v Mile Matic | 3-6,2-6 |
| UTR Pro Tennis Series Zadar | 2021/10/01 14:30 | Mile Matic v Lawrence Bataljin | 4-6,0-6 |
| UTR Pro Tennis Series Zadar | 2021/09/29 09:30 | Mile Matic v Filip Maric | 6-0,3-6,5-4 |
| UTR Pro Tennis Series Zadar | 2021/09/28 09:30 | Mile Matic v Petar Pjevcevic | 2-6,2-5 |
| UTR Pro Tennis Series Zadar | 2021/09/27 16:00 | Yanais Laurent v Mile Matic | 6-0,5-1 |
| ITF M15 Sibenik | 2021/04/18 08:00 | Giulio Colacioppo v Mile Matic | 3-6,6-2,10-3 |
| ITF M15 Opatija | 2021/03/22 10:10 | Mile Matic v Matyas Fuele | 6-1,3-6,5-10 |
| 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 |
| UTR Pro Tennis Series Zadar | 2021/10/01 11:00 | Admir Kalender v Jose A R Rodriguez | 6-4,6-3 |
| UTR Pro Tennis Series Zadar | 2021/09/30 08:00 | Admir Kalender v Alen Rogic-Hadzalic | 2-6,6-4,5-6 |
| UTR Pro Tennis Series Zadar | 2021/09/29 12:00 | Borna Devald v Admir Kalender | 5-7,6-2,1-5 |