Stadium: Court 6 Round: 25 Ground: Clay
| ITF M15 Szkopje | 2021/06/01 09:30 | Rrezart Cungu v Admir Kalender | 0-6,3-6 |
| ITF M15 Szkopje | 2021/05/30 08:00 | Admir Kalender v Stefan Micov | 6-3,6-4 |
| ITF M15 Sibenik | 2021/05/17 10:25 | Duje Kekez v Admir Kalender | 6-4,0-6,10-8 |
| ITF M15 Sibenik | 2021/05/16 10:00 | Caspar Schuetze v Admir Kalender | 3-6,1-6 |
| ITF M15 Sibenik | 2021/04/19 10:10 | Admir Kalender v Alexis Boureau | 4-6,4-6 |
| ITF M15 Opatija | 2021/03/23 12:30 | Admir Kalender v Davide Galoppini | 2-6,0-6 |
| ITF M15 Rovinj | 2021/03/17 10:00 | Pietro Rondoni v Admir Kalender | 7-5,6-4 |
| ITF M15 Porec | 2021/03/10 10:20 | Admir Kalender v Pavel Nejedly | 2-6,1-6 |
| ITF M15 St Petersburg | 2021/04/18 08:55 | Savriyan Danilov v Yanki Erel | 1-6,4-6 |
| ITF M15 St Petersburg | 2021/04/17 08:00 | Naoki Tajima v Savriyan Danilov | 4-6,2-6 |
| ITF M15 St Petersburg | 2021/04/16 08:00 | Marat Sharipov v Savriyan Danilov | 4-6,4-6 |
| ITF M15 St Petersburg | 2021/04/15 13:40 | Matvey Minin v Savriyan Danilov | 3-6,1-6 |
| ITF M15 St Petersburg | 2021/04/13 13:45 | Daniil Golubev v Savriyan Danilov | 2-6,1-6 |
| ITF M15 St Petersburg | 2021/04/07 07:00 | Savriyan Danilov v Matic Spec | 3-6,2-6 |
| ITF M15 Kazan | 2021/03/10 07:00 | Savriyan Danilov v Sergey Bolotov | 6-7,2-6 |
| Challenger Nur-Sultan | 2021/02/21 05:15 | Aleksandr Nedovyesov v Savriyan Danilov | 6-4,6-4 |