Stadium: Court 1 Round: 26 Ground: Carpet indoor
| ITF M15 Opava | 2021/11/16 09:00 | Boris Butulija v Peter Benjamin Privara | 6-2,6-4 |
| ITF M15 Opava | 2021/11/15 09:00 | Boris Butulija v Stepan Pecak | 6-2,6-4 |
| ITF M15 Opava | 2021/11/14 09:00 | Boris Butulija v Dawid Taczala | 6-2,6-2 |
| ITF M15 Heraklion | 2021/11/02 08:30 | Boris Butulija v Hazem Naw | 1-6,2-6 |
| ITF M15 Doha | 2021/10/20 12:30 | Boris Butulija v Julian Cash | 2-6,3-6 |
| ITF M15 Doha | 2021/10/13 13:55 | Boris Butulija v Alexis Canter | 6-7,6-7 |
| ITF M15 Doha | 2021/10/12 12:30 | Boris Butulija v Stylianos Christodoulou | 6-1,7-6 |
| ITF M15 Doha | 2021/10/11 13:30 | Boris Butulija v Nikolaj Katic | 6-1,6-3 |
| Challenger Bratislava | 2021/11/10 13:50 | Milos Karol v Lukas Lacko | 4-6,3-6 |
| Challenger Bratislava | 2021/11/08 11:50 | Milos Karol v Alexander Shevchenko | 7-6,6-4 |
| Challenger Bratislava | 2021/11/07 14:35 | Ergi Kirkin v Milos Karol | 1-6,6-7 |
| ITF M25 Prague | 2021/10/07 14:05 | Tobias Simon v Milos Karol | 6-4,4-6,7-6 |
| ITF M25 Prague | 2021/10/06 10:15 | Dominik Kellovsky v Milos Karol | 5-7,4-6 |
| ITF M25 Prague | 2021/10/04 12:20 | Milos Karol v Matyas Cerny | 7-6,7-5 |
| ITF M25 Prague | 2021/10/03 13:00 | Milos Karol v Vitek Horak | 6-0,6-1 |
| ITF M25 Budapest | 2021/09/30 09:00 | Milos Karol v Mate Valkusz | 6-7,0-6 |