Stadium: Court 4 Round: 44 Ground: Clay
| ITF M25 Ricany | 2021/08/29 12:00 | Dominik Langmajer v Martin Machala | 3-6,3-6 |
| ITF M15 Bratislava | 2021/08/16 10:30 | Boris Butulija v Martin Machala | 6-0,6-3 |
| ITF M15 Poprad | 2021/07/06 11:25 | Milos Karol v Martin Machala | 6-3,6-4 |
| ITF M25 Most | 2021/05/23 14:00 | Martin Machala v Dominik Recek | 4-6,0-6 |
| ITF M25 Ricany | 2021/08/29 10:30 | Adam Kozler v Jakub Kroslak | 7-6,6-1 |