Stadium: Centre Court Round: 14 Ground: Clay
| Challenger Warsaw | 2021/08/23 09:00 | Zielinski, Jan 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 |
| Prostejov, Singles M-ITF-CZE-04A | 2021/08/18 07:55 | Lucas Miedler v Aldin Setkic | 6-1,6-4 |
| Prostejov, Singles M-ITF-CZE-04A | 2021/08/17 11:50 | Nejedly, Pavel v Aldin Setkic | 0-6,2-6 |
| Challenger - Prague | 2021/08/08 12:00 | Adrian Andreev v Aldin Setkic | 7-5,6-1 |
| Challenger Trieste | 2021/07/25 15:00 | Aldin Setkic v Viktor Durasovic | 1-6,6-7 |
| ITF - M15 Doboj | 2021/07/14 08:30 | Kekez, Duje v Aldin Setkic | 7-5,7-6 |
| ITF M25 Velenje | 2021/07/06 09:45 | Hampel, Lenny v Aldin Setkic | 3-6,6-3,6-2 |
| Challenger - Barletta | 2021/08/22 10:00 | Nicolas Alvarez v Bortolotti, Marco | 6-4,5-7,6-2 |
| Challenger Verona | 2021/08/17 10:20 | Pavel Kotov v Bortolotti, Marco | 6-3,6-3 |
| ITF M25 Bolzano | 2021/08/05 08:00 | Federico Arnaboldi v Bortolotti, Marco | 6-3,6-3 |
| ITF M25 Bolzano | 2021/08/04 11:10 | Bortolotti, Marco v Arthur Reymond | 6-4,6-4 |
| ITF M25 Bolzano | 2021/08/03 16:20 | Bortolotti, Marco v Luca Castagnola | 6-1,3-6,6-2 |
| ITF M25 Wroclaw | 2021/06/30 11:15 | Bortolotti, Marco v Illya Beloborodko | 3-6,3-6 |
| Challenger Biella | 2021/05/30 10:55 | Alexey Vatutin v Bortolotti, Marco | 3-6,6-4,6-1 |
| ITF - M15 Prijedor | 2021/05/11 09:35 | Denis Yevseyev v Bortolotti, Marco | 7-6,6-3 |