| ITF - M15 Ostrava | 2021/11/25 12:10 | Dominik Kellovsky v Remy Bertola | 6-3,6-7,4-6 |
| ITF - M15 Ostrava | 2021/11/24 11:00 | Dominik Kellovsky v Lukas Velik | 6-3,6-2 |
| ITF - M15 Ostrava | 2021/11/22 10:35 | Milos Karol v Dominik Kellovsky | 6-7,3-6 |
| ITF - M15 Ostrava | 2021/11/21 09:00 | Martin Benes v Dominik Kellovsky | 1-6,2-6 |
| ITF - M15 Opava | 2021/11/17 10:25 | Marvin Moeller v Dominik Kellovsky | 6-4,6-4 |
| ITF - M15 Opava | 2021/11/15 09:00 | Lukas Velik v Dominik Kellovsky | 6-3,1-6,3-10 |
| ITF - M15 Opava | 2021/11/14 12:30 | Patrik Jancovic v Dominik Kellovsky | 1-6,1-6 |
| ITF - M15 Parnu | 2021/10/27 08:25 | Ben Jones v Dominik Kellovsky | 6-3,7-5 |
| República Checa - Extraliga | 2021/12/13 11:40 | Zdenek Kolar v Lukas Lacko | 6-3,7-5 |
| Challenger - Bratislava | 2021/11/11 17:20 | Lukas Lacko v Zsombor Piros | 2-6,4-6 |
| Challenger - Bratislava | 2021/11/10 13:50 | Milos Karol v Lukas Lacko | 4-6,3-6 |
| Challenger - Ismaning | 2021/10/31 13:00 | Lukas Lacko v Oscar Otte | 4-6,4-6 |
| Challenger - Ismaning | 2021/10/30 14:10 | Quentin Halys v Lukas Lacko | 1-6,6-7 |
| Challenger - Ismaning | 2021/10/29 16:55 | Matthias Bachinger v Lukas Lacko | 5-7,6-3,4-6 |
| Challenger - Ismaning | 2021/10/27 15:25 | Lukas Lacko v Tomas Machac | 6-7,6-4,7-6 |
| Challenger - Ismaning | 2021/10/25 13:35 | Marius Copil v Lukas Lacko | 6-7,6-7 |