Estadio: Court 1 Round: 28 Ground: Clay
| 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 Brcko | 2021/05/22 12:15 | Eric Vanshelboim v Matheus P De Almeida | 7-6,6-4 |
| ITF M15 Brcko | 2021/05/22 07:30 | Matheus P De Almeida v Viktor Jovic | 6-1,6-0 |
| ITF M15 Brcko | 2021/05/21 15:20 | Matheus P De Almeida v Nicolas Zanellato | 6-4,7-6 |
| ITF M15 Brcko | 2021/05/21 09:25 | Matheus P De Almeida v Lazar Milicevic | 7-5,7-5 |
| ITF M15 Prijedor | 2021/05/14 13:45 | Matheus P De Almeida v Nerman Fatic | 6-2,4-6,4-6 |
| ITF M25 Kiseljak | 2021/05/28 14:45 | Gauthier Onclin v Aldin Setkic | 3-6,6-7 |
| ITF M25 Kiseljak | 2021/05/27 09:00 | Bozo Barun v Aldin Setkic | 2-6,4-6 |
| ITF M25 Kiseljak | 2021/05/26 08:00 | Lilian Breut v Aldin Setkic | 3-6,3-6 |
| ITF M15 Sibenik | 2021/05/19 16:20 | Aldin Setkic v Timo Legout | 6-4,4-6,6-7 |
| ITF M15 Prijedor | 2021/05/16 08:55 | Aldin Setkic v Nerman Fatic | 6-3,4-6,6-2 |
| ITF M15 Prijedor | 2021/05/15 14:30 | Aldin Setkic v Denis Yevseyev | 7-5,6-2 |
| ITF M15 Prijedor | 2021/05/14 11:00 | Alen Rogic-Hadzalic v Aldin Setkic | 6-3,2-6,5-7 |
| ITF M15 Prijedor | 2021/05/14 07:00 | Joao Lucas Reis da Silva v Aldin Setkic | 2-6,2-6 |