Stadium: Court 3 Round: 19 Ground: Hardcourt outdoor
| Challenger Istanbul | 2021/09/12 11:30 | Kaichi Uchida v Aldin Setkic | 4-6,3-6 |
| Challenger Banja Luka | 2021/09/06 09:00 | Aldin Setkic v Martin Cuevas | 6-7,6-2,3-6 |
| Challenger Banja Luka | 2021/09/05 09:00 | Aldin Setkic v Marco Bortolotti | 7-5,6-4 |
| Challenger Warsaw | 2021/08/23 09:00 | Jan Zielinski v Aldin Setkic | 1-6,6-2,7-5 |
| Challenger Warsaw | 2021/08/22 09:00 | Jasza Szajrych v Aldin Setkic | 0-6,4-6 |
| ITF M25 Prostejov | 2021/08/18 07:55 | Lucas Miedler v Aldin Setkic | 6-1,6-4 |
| ITF M25 Prostejov | 2021/08/17 11:50 | Pavel Nejedly v Aldin Setkic | 0-6,2-6 |
| Challenger Prague | 2021/08/08 12:00 | Adrian Andreev v Aldin Setkic | 7-5,6-1 |
| Challenger Istanbul | 2021/09/12 11:05 | Togan Tokac v Elmar Ejupovic | 2-6,4-6 |
| Challenger Banja Luka | 2021/09/06 09:00 | Elmar Ejupovic v Jonathan Mridha | 6-2,2-6,2-6 |
| Challenger Banja Luka | 2021/09/05 11:15 | Elmar Ejupovic v Andrej Nedic | 3-6,6-3,6-0 |
| Challenger Prague | 2021/08/23 08:00 | Uladzimir Ignatik v Elmar Ejupovic | 7-6,2-6,6-4 |
| Challenger Prague | 2021/08/22 11:35 | Jiri Jenicek v Elmar Ejupovic | 2-6,1-6 |
| Challenger San Marino | 2021/08/08 08:00 | Elmar Ejupovic v Francesco Forti | 1-6,4-6 |
| ITF M25 Bolzano | 2021/08/04 09:00 | Elmar Ejupovic v Matteo Arnaldi | 4-6,6-7 |
| ITF M25 Bolzano | 2021/08/03 06:50 | Elmar Ejupovic v Francesco Maestrelli | 6-2,6-2 |