stadio: Court 2 Round: 14 Ground: Clay
| Challenger - Segovia | 2021/07/26 16:30 | Adrian Andreev v Benjamin Bonzi | 7-6,4-6,6-7 |
| Challenger Pozoblanco | 2021/07/21 15:00 | Adrian Andreev v Gregoire Barrere | 3-6,0-6 |
| Challenger Pozoblanco | 2021/07/19 19:45 | Adrian Andreev v Blas Ruiz Romero | 6-0,6-0 |
| Challenger Iasi | 2021/07/14 08:00 | Lucas Miedler v Adrian Andreev | 7-6,6-1 |
| Challenger Iasi | 2021/07/12 09:20 | Adrian Andreev v Alexandre Muller | 6-4,1-6,6-3 |
| Challenger Braunschweig | 2021/07/04 09:00 | Daniel Michalski v Adrian Andreev | 7-6,7-6 |
| ITF M25 Tulsa | 2021/06/16 16:30 | Adrian Andreev v Gonzalo Villanueva | 6-2,3-6,4-6 |
| Challenger Orlando | 2021/06/07 14:00 | Adrian Andreev v Stefan Kozlov | 6-4,4-6,4-6 |
| Challenger Trieste | 2021/07/25 15:00 | Aldin Setkic v Viktor Durasovic | 1-6,6-7 |
| ITF M15 Doboj | 2021/07/14 08:30 | Duje Kekez v Aldin Setkic | 7-5,7-6 |
| ITF M25 Velenje | 2021/07/06 09:45 | Lenny Hampel v Aldin Setkic | 3-6,6-3,6-2 |
| Challenger Prostejov | 2021/06/13 13:55 | Jelle Sels v Aldin Setkic | 6-3,6-1 |
| ITF M15 Sarajevo | 2021/06/02 12:30 | Din Karahodza v Aldin Setkic | 6-4,6-2 |
| 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 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 |