| UTR Pro Tennis Series Zadar | 2021/10/02 07:00 | Borna Devald v Drazen Petrovic | 5-0 |
| UTR Pro Tennis Series Zadar | 2021/09/30 08:00 | Borna Devald v Jose A R Rodriguez | 7-6,7-5 |
| UTR Pro Tennis Series Zadar | 2021/09/29 12:00 | Borna Devald v Admir Kalender | 5-7,6-2,1-5 |
| UTR Pro Tennis Series Zadar | 2021/09/28 08:00 | Borna Devald v Alen Rogic-Hadzalic | 3-6,4-5 |
| UTR Pro Tennis Series Zadar | 2021/09/27 15:30 | Borna Devald v Myroslav Bondar | 6-0,6-1 |
| ITF M15 Sibenik | 2021/04/19 14:30 | Borna Devald v Tim Heger | 3-6,2-6 |
| ITF M15 Sibenik | 2021/04/18 13:00 | Borna Devald v Obrad Markovski | 6-3,5-7,10-7 |
| ITF M15 Opatija | 2021/03/24 13:10 | Corentin Denolly v Borna Devald | 6-3,6-2 |
| UTR Pro Tennis Series Zadar | 2021/10/02 13:00 | Filip Maric v Michalis Sakellaridis | 2-6,2-5 |
| UTR Pro Tennis Series Zadar | 2021/10/01 09:30 | Deni Zmak v Michalis Sakellaridis | 6-2,7-5 |
| UTR Pro Tennis Series Zadar | 2021/09/30 12:00 | Ivan Liutarevich v Michalis Sakellaridis | 6-7,5-6 |
| UTR Pro Tennis Series Zadar | 2021/09/29 15:00 | Maxim Krapivin v Michalis Sakellaridis | 2-6,2-6 |
| UTR Pro Tennis Series Zadar | 2021/09/27 11:00 | Ivan Denisov v Michalis Sakellaridis | 6-2,5-1 |
| ITF M25 Pardubice | 2021/09/19 11:00 | Michalis Sakellaridis v Alan F R Fierros | 6-7,6-4,3-10 |
| UTR Pro Tennis Series Ricany | 2021/09/18 10:30 | Stefanos Sakellaridis v Michalis Sakellaridis | 6-2,7-6 |
| UTR Pro Tennis Series Ricany | 2021/09/17 07:30 | Dominik Kellovsky v Michalis Sakellaridis | 6-2,6-3 |