Stadium: Court 2 Round: 25 Ground: Clay
| ITF M15 Prijedor | 2021/05/14 10:15 | Matheus P De Almeida v Bozo Barun | 6-1,6-1 |
| ITF M15 Sarajevo | 2021/06/01 10:30 | Bozo Barun v Matej Galik | 6-3,4-6,10-7 |
| ITF M15 Sarajevo | 2021/05/31 12:00 | Bozo Barun v Nicolas Zanellato | 6-3,6-1 |
| ITF M15 Sarajevo | 2021/05/31 08:00 | Bozo Barun v Ivan Randjelovic | 6-0,6-2 |
| ITF M25 Kiseljak | 2021/05/27 09:00 | Bozo Barun v Aldin Setkic | 2-6,4-6 |
| ITF M25 Kiseljak | 2021/05/26 09:00 | Stefan Micov v Bozo Barun | 4-6,1-6 |
| ITF M25 Kiseljak | 2021/05/25 08:00 | Bozo Barun v Goran Zivotic | 6-0,6-0 |
| ITF M25 Kiseljak | 2021/05/24 11:00 | Bozo Barun v Drazen Petrovic | 6-1,6-3 |
| ITF M25 Kiseljak | 2021/05/23 10:45 | Bozo Barun v Samuel M Arjona | 6-3,6-2 |
| ITF M25 Kiseljak | 2021/05/30 12:30 | Matheus P De Almeida v Francesco Forti | 6-4,2-6,6-4 |
| ITF M25 Kiseljak | 2021/05/29 10:00 | Matheus P De Almeida v Aldin Setkic | 6-4,6-2 |
| ITF M25 Kiseljak | 2021/05/28 12:00 | Jelle Sels v Matheus P De Almeida | 6-7,3-6 |
| ITF M25 Kiseljak | 2021/05/27 10:30 | Tim Heger v Matheus P De Almeida | 3-6,3-6 |
| ITF M25 Kiseljak | 2021/05/26 12:30 | Matheus P De Almeida v Elmar Ejupovic | 6-2,6-2 |
| ITF M15 Brčko | 2021/05/22 12:15 | Eric Vanshelboim v Matheus P De Almeida | 7-6,6-4 |
| ITF M15 Brčko | 2021/05/22 07:30 | Matheus P De Almeida v Viktor Jovic | 6-1,6-0 |
| ITF M15 Brčko | 2021/05/21 15:20 | Matheus P De Almeida v Nicolas Zanellato | 6-4,7-6 |