Stadium: Court 1 Indoor Round: 44 Ground: Clay
| ITF M25 Kiseljak | 2021/05/25 10:40 | Valentin Lapalu v Lukas Palovic | 3-6,6-3,3-10 |
| ITF M25 Kiseljak | 2021/05/24 11:00 | Peter Makk v Valentin Lapalu | 3-6,4-6 |
| ITF M25 Kiseljak | 2021/05/23 13:15 | Valentin Lapalu v Alen Moritz Hodzic | 6-4,6-2 |
| ITF M15 Brcko | 2021/05/18 07:00 | Valentin Lapalu v Dusan Rajic | 1-6,6-3,6-10 |
| ITF M15 Brcko | 2021/05/16 07:00 | Valentin Lapalu v Aleksandar Mihailovic | 6-3,6-4 |
| ITF M15 Prijedor | 2021/05/10 13:30 | Duje Kekez v Valentin Lapalu | 6-4,6-4 |
| ITF M15 Las Palmas | 2021/04/27 08:00 | Yan Bondarevskiy v Valentin Lapalu | 6-4,6-0 |
| ITF M15 Las Palmas | 2021/04/26 08:30 | Angel S Malinowska v Valentin Lapalu | 3-6,0-6 |
| ITF M15 Brcko | 2021/05/19 08:30 | Maximilian Neuchrist v Lazar Vojinovic | 6-3,6-4 |
| ITF M15 Brcko | 2021/05/18 09:30 | Drazen Petrovic v Lazar Vojinovic | 2-6,3-6 |
| ITF M15 Brcko | 2021/05/17 15:30 | Lazar Vojinovic v Luka Petrovic | 6-3,6-4 |
| ITF M15 Brcko | 2021/05/16 11:00 | Lazar Vojinovic v Stevan Popovic | 7-5,6-4 |
| ITF M15 Prijedor | 2021/05/10 10:30 | Lazar Vojinovic v Tomislav Jotovski | 5-7,0-6 |
| ITF M15 Prijedor | 2021/05/09 09:30 | Drazen Petrovic v Lazar Vojinovic | 3-6,6-0,4-10 |
| ITF M15 Antalya | 2021/04/07 09:35 | Lazar Vojinovic v Adam Pavlasek | 1-6,4-6 |
| ITF M15 Antalya | 2021/04/06 07:00 | Lazar Vojinovic v Michalis Sakellaridis | 1-6,7-6,10-8 |