| UTR Pro Tennis Series Zadar | 2021/11/16 16:00 | Jerko Brkic v Mario Radev | 6-3,6-1 |
| UTR Pro Tennis Series Zadar | 2021/11/14 16:00 | Jerko Brkic v Janos Fekete | 6-2,6-4 |
| ITF M15 Ulcinj | 2021/09/20 08:00 | Jerko Brkic v Alexandre Aubriot | 1-6,2-6 |
| ITF M15 Ulcinj | 2021/09/19 09:30 | Jerko Brkic v Martin Muedini | 6-1,7-5 |
| ITF M15 Ulcinj | 2021/09/13 08:00 | Gianmarco Ferrari v Jerko Brkic | 6-1,6-3 |
| ITF M15 Ulcinj | 2021/09/12 08:00 | Jerko Brkic v Lior Goldenberg | 6-3,6-0 |
| UTR Pro Tennis Series Zadar | 2021/07/04 08:30 | Jerko Brkic v Karlo Kajin | 6-4,6-4 |
| UTR Pro Tennis Series Zadar | 2021/07/02 12:30 | Constant De La Bassetiere v Jerko Brkic | 7-6,5-2 |
| UTR Pro Tennis Series Zadar | 2021/11/16 14:13 | Janos Fekete v Eduard Shcherbyna | 6-4,6-4 |
| UTR Pro Tennis Series Zadar | 2021/11/15 10:30 | Eduard Shcherbyna v Mario Radev | 6-1,6-3 |