Stadium: Court 5 Round: 44 Ground: Clay
| ITF M15 Sibenik | 2021/05/16 07:30 | Lovre Erceg v Nikola Basic | 0-6,1-6 |
| ITF M15 Sibenik | 2021/04/19 07:55 | Peter Goldsteiner v Lovre Erceg | 6-1,6-0 |
| ITF M15 Sibenik | 2021/04/18 08:00 | Lovre Erceg v Roko Horvat | 6-2,3-6,10-7 |
| Challenger Banja Luka | 2021/09/05 11:15 | Elmar Ejupovic v Andrej Nedic | 3-6,6-3,6-0 |
| ITF M15 Doboj | 2021/07/15 10:40 | Andrej Nedic v Duje Kekez | 0-6,2-6 |
| ITF M15 Doboj | 2021/07/14 13:15 | Stefan Milicevic v Andrej Nedic | 7-6,3-6,5-7 |
| ITF M15 Sarajevo | 2021/05/31 10:00 | Andrej Nedic v Nicolas Zanellato | 3-6,3-6 |
| ITF M15 Brcko | 2021/05/18 07:00 | Stefan Micov v Andrej Nedic | 3-6,6-3,10-6 |
| ITF M15 Brcko | 2021/05/16 11:00 | Andrej Nedic v Joel Vincent Link | 6-7,6-4,10-4 |