Stadium: Court 2 Opatija Round: 25 Ground: Clay
| ITF - M15 Rovinj | 2021/03/17 10:00 | Rondoni, Pietro v Kalender, Admir | 7-5,6-4 |
| ITF - M15 Porec | 2021/03/10 10:20 | Kalender, Admir v Nejedly, Pavel | 2-6,1-6 |
| ITF - M15 Antalya | 2021/02/03 06:30 | Kalender, Admir v Gabriele Maria Noce | 3-6,7-6,8-10 |
| ITF - M15 Antalya | 2021/02/02 10:00 | Alexander Weis v Kalender, Admir | 3-6,6-7 |
| ITF - M15 Antalya | 2021/01/28 08:00 | Kalender, Admir v Hasson, Jordan | 6-7,6-4,9-11 |
| ITF - M15 Antalya | 2021/01/19 06:30 | Georgii Kravchenko v Kalender, Admir | 7-5,6-3 |
| ITF - M15 Antalya | 2021/01/18 07:00 | Kalender, Admir v Tashbulatov, Dostanbek | 6-3,6-1 |
| ITF - M15 Antalya | 2021/01/17 09:00 | Kalender, Admir v Alexandr Binda | 5-7,7-5,11-9 |
| ITF - M15 Rovinj | 2021/03/15 16:05 | Galoppini, Davide v Luka Pavlovic | 2-6,6-7 |
| ITF - M15 Rovinj | 2021/03/15 09:30 | Galoppini, Davide v Vukovic, Milos | 6-2,6-0 |
| ITF - M15 Porec | 2021/03/11 09:00 | Rondoni, Pietro v Galoppini, Davide | 6-4,6-3 |
| ITF - M15 Porec | 2021/03/09 12:30 | Galoppini, Davide v Basso, Andrea | 6-2,6-2 |
| ITF - M15 Antalya | 2021/02/18 11:00 | Galoppini, Davide v Oleksii Krutykh | 1-6,6-4,5-7 |
| ITF - M15 Antalya | 2021/02/16 07:00 | Nicolas Mejia v Galoppini, Davide | 4-6,3-6 |
| ITF - M15 Antalya | 2021/02/09 07:00 | Timo Legout v Galoppini, Davide | 7-5,6-4 |
| ITF - M15 Antalya | 2021/02/08 07:00 | Dan Alexandru Tomescu v Galoppini, Davide | 6-1,1-6,4-10 |