Stadium: Court 2 Round: 54 Ground: Hardcourt indoor
| ITF M25 Ricany | 2021/08/30 10:00 | Martin Machala v Adam Kozler | 6-7,6-4,10-12 |
| 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 Prague | 2021/10/06 08:55 | Stepan Pecak v Uladzimir Ignatik | 3-6,3-6 |
| ITF M25 Budapest | 2021/09/28 07:25 | Martin Krumich v Stepan Pecak | 6-2,6-3 |
| ITF M25 Budapest | 2021/09/27 13:05 | Stepan Pecak v Martin Benes | 6-4,6-0 |
| ITF M25 Pardubice | 2021/09/21 07:55 | Toby Martin v Stepan Pecak | 7-5,7-6 |
| ITF M25 Pardubice | 2021/09/20 08:00 | Marcel Marlon Sudzum v Stepan Pecak | 3-6,2-6 |
| ITF M25 Sintra | 2021/09/14 17:05 | Jack Gibbens v Stepan Pecak | 6-1,3-6,11-9 |
| ITF M25 Sintra | 2021/09/13 15:10 | Joao Goncalves v Stepan Pecak | 1-6,2-6 |
| ITF M15 Zilina | 2021/08/30 11:30 | Stepan Pecak v Jakub Novak | 7-6,1-6,9-11 |