Stadium: Court 6 Round: 62 Ground: Clay
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Roman Postolka v Jakub Kroslak | 4-6,3-6 |
| ITF M15 Poprad | 2021/07/04 11:00 | Jakub Kroslak v Mateusz Terczynski | 6-2,6-7,9-11 |
| ITF M15 Monastir | 2021/03/28 09:00 | Aleksandr Kalinin v Jakub Kroslak | 7-5,7-6 |
| ITF M15 Monastir | 2021/03/22 10:00 | Jakub Kroslak v Aristotelis Thanos | 4-6,2-6 |
| ITF M15 Monastir | 2021/03/21 16:00 | Jakub Kroslak v Tushar Sharma | 6-1,6-1 |
| ITF M15 Bratislava | 2021/03/09 09:00 | Jakub Kroslak v Luca Van Assche | 2-6,1-6 |
| ITF M15 Bratislava | 2021/03/08 15:00 | Jakub Kroslak v Radovan Michalik | 6-1,1-6,10-7 |
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Gabriele Moghini v Peter Makk | 3-6,3-6 |
| ITF M15 Antalya | 2021/06/21 07:00 | Fletcher Scott v Peter Makk | 6-4,6-4 |
| ITF M15 Antalya | 2021/06/20 07:00 | Credit Chaiyarin v Peter Makk | 1-6,1-6 |
| ITF M25 Kiseljak | 2021/05/24 11:00 | Peter Makk v Valentin Lapalu | 3-6,4-6 |
| ITF M15 Antalya | 2021/03/25 06:55 | Peter Makk v Daniel Michalski | 1-6,7-5,6-7 |
| ITF M15 Antalya | 2021/03/24 06:30 | Nicolo Turchetti v Peter Makk | 4-6,6-7 |
| ITF M15 Antalya | 2021/03/22 07:00 | Artsiom Dabryian v Peter Makk | 4-6,1-6 |
| ITF M15 Antalya | 2021/03/21 07:00 | Vladislav Tasenkov v Peter Makk | 2-6,2-6 |