Stadium: Court 5 Round: 25 Ground: Clay
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/20 08:00 | Rogic Hadzalic, Alen v Ondrej Horak | 6-1,6-4 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/19 10:55 | Rogic Hadzalic, Alen v Jan Kupcic | 7-5,6-3 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/18 13:00 | Rogic Hadzalic, Alen v Radojkovic, Milan | 6-4,7-5 |
| ITF - M15 Opatija | 2021/03/21 13:00 | Polakovic, Samo v Rogic Hadzalic, Alen | 6-3,2-6,13-11 |
| ITF - M15 Rovinj | 2021/03/15 11:30 | Zmak, Deni v Rogic Hadzalic, Alen | 6-3,7-6 |
| ITF - M15 Rovinj | 2021/03/14 08:30 | Rogic Hadzalic, Alen v Aleksandre Bakshi | 6-4,6-2 |
| ITF - M15 Porec | 2021/03/07 14:30 | Oreskovic, Z. v Rogic Hadzalic, Alen | 3-6,2-6 |
| Adriatic Tennis Series | 2020/06/15 15:30 | Rogic Hadzalic, Alen v Mektic, Nikola | 6-7,1-6 |
| Challenger - Split | 2021/04/12 08:30 | Barun, Bozo v Lukas Klein | 1-6,4-6 |
| Challenger Split Qual | 2021/04/11 11:30 | Gian Marco Moroni v Barun, Bozo | 3-6,6-2,6-7 |
| Challenger - Split | 2021/04/04 09:00 | Kavcic, Blaz v Barun, Bozo | 6-4,6-3 |
| ITF - M15 Opatija | 2021/03/23 10:50 | Francesco Passaro v Barun, Bozo | 6-2,6-3 |
| ITF - M15 Opatija | 2021/03/22 13:30 | Barun, Bozo v Polakovic, Samo | 6-4,6-2 |
| ITF - M15 Opatija | 2021/03/21 11:00 | Matthias Uwe Kask v Barun, Bozo | 2-6,4-6 |
| ITF - M15 Porec | 2021/03/08 10:00 | Louis Tessa v Barun, Bozo | 4-6,6-4,10-7 |
| ITF - M15 Porec | 2021/03/07 11:00 | Barun, Bozo v Colacioppo, Giulio | 6-1,6-0 |