| UTR Pro Tennis Series Zadar | 2021/11/18 09:00 | 로지크 하드잘릭, 알렌 v Tadic, Vladan | 6-3,3-6,5-3 |
| UTR Pro Tennis Series Zadar | 2021/11/15 15:00 | 로지크 하드잘릭, 알렌 v Oleksii Osadchyi | 6-0,5-1 |
| UTR Pro Tennis Series Zadar | 2021/11/14 12:00 | 로지크 하드잘릭, 알렌 v Penev, Ivan | 6-3,4-6,6-2 |
| UTR Pro Tennis Series Zadar | 2021/10/03 09:30 | 즈마크, 데니 v 로지크 하드잘릭, 알렌 | 6-4,7-5 |
| UTR Pro Tennis Series Zadar | 2021/10/02 10:00 | 페케트, 자노스 v 로지크 하드잘릭, 알렌 | 6-0,2-6,4-5 |
| UTR Pro Tennis Series Zadar | 2021/10/01 11:00 | Myroslav Bondar v 로지크 하드잘릭, 알렌 | 1-6,1-5 |
| UTR Pro Tennis Series Zadar | 2021/09/30 08:00 | 칼렌더, 아드미르 v 로지크 하드잘릭, 알렌 | 2-6,6-4,5-6 |
| UTR Pro Tennis Series Zadar | 2021/09/28 08:00 | Borna Devald v 로지크 하드잘릭, 알렌 | 3-6,4-5 |
| UTR Pro Tennis Series Zadar | 2021/11/18 16:00 | Brkic, Jerko v Eduard Shcherbyna | 6-1,6-0 |
| UTR Pro Tennis Series Zadar | 2021/11/16 16:00 | Brkic, Jerko v Mario Radev | 6-3,6-1 |
| UTR Pro Tennis Series Zadar | 2021/11/14 16:00 | Brkic, Jerko v 페케트, 자노스 | 6-2,6-4 |
| ITF M15 Ulcinj | 2021/09/20 08:00 | Brkic, Jerko v 아우브리오트, 알렉산드레 | 1-6,2-6 |
| ITF M15 Ulcinj | 2021/09/19 09:30 | Brkic, Jerko v 무에디니, 마르틴 | 6-1,7-5 |
| ITF M15 Ulcinj | 2021/09/13 08:00 | 페라리, 지안마르코 v Brkic, Jerko | 6-1,6-3 |
| ITF M15 Ulcinj | 2021/09/12 08:00 | Brkic, Jerko v 골덴벨그, 리올 | 6-3,6-0 |
| UTR Pro Tennis Series Zadar | 2021/07/04 08:30 | Brkic, Jerko v Kajin, Karlo | 6-4,6-4 |