Stadium: Court 2 Opatija Round: 25 Ground: Clay
| ITF M15 Rovinj | 2021/03/18 09:00 | Corentin Denolly v Roko Horvat | 6-0,6-1 |
| ITF M15 Rovinj | 2021/03/16 10:00 | Roko Horvat v Ivan Sodan | 7-5,3-6,6-3 |
| ITF M15 Porec | 2021/03/07 11:00 | Roko Horvat v Mattia Frinzi | 1-6,1-6 |
| ITF M15 Anif | 2020/08/23 07:00 | Roko Horvat v Tim Heger | 6-2,4-6,5-10 |
| ITF M25 Vogau | 2020/08/16 09:30 | Roko Horvat v Karlis Ozolins | 4-6,3-6 |
| ITF M15 Porec | 2020/03/11 10:30 | Matvey Minin v Roko Horvat | 6-0,6-0 |
| ITF M15 Zlatibor | 2019/09/17 07:00 | Mesa Mei v Roko Horvat | 6-2,6-3 |
| ITF M15 Zlatibor | 2019/09/16 08:00 | Christos Keisidis v Roko Horvat | 1-6,5-7 |
| ITF M15 Rovinj | 2021/03/21 09:50 | Corentin Denolly v Martin Damm | 3-6,7-5,6-0 |
| ITF M15 Rovinj | 2021/03/20 11:40 | Giovanni Fonio v Martin Damm | 6-4,3-6,6-7 |
| ITF M15 Rovinj | 2021/03/19 12:05 | David Pichler v Martin Damm | 1-6,2-6 |
| ITF M15 Rovinj | 2021/03/18 10:10 | Martin Damm v Alexandar Lazarov | 6-1,5-7,6-4 |
| ITF M15 Rovinj | 2021/03/17 09:00 | Martin Damm v Filip Misolic | 6-2,6-3 |
| ITF M15 Porec | 2021/03/11 12:00 | Martin Damm v Filip Misolic | 6-3,5-7,1-6 |
| ITF M25 Naples | 2021/02/26 16:00 | Martin Damm v Gonzalo Villanueva | 7-5,6-7,6-7 |
| ITF M25 Naples | 2021/02/25 17:25 | Martin Damm v Evan Zhu | 6-1,6-1 |