Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2021/10/03 09:00 | Ali Zaghloul v Jakub Kroslak | 2-6,2-6 |
| ITF M25 Ricany | 2021/08/29 10:30 | Adam Kozler v Jakub Kroslak | 7-6,6-1 |
| ITF M15 Bratislava | 2021/08/24 08:00 | Jiri Barnat v Jakub Kroslak | 6-3,7-5 |
| ITF M15 Bratislava | 2021/08/23 09:00 | Jakub Kroslak v Iiro Vasa | 6-1,6-3 |
| ITF M25 Prostejov | 2021/08/16 08:00 | Dominique Graf v Jakub Kroslak | 6-2,6-4 |
| ITF M25 Prostejov | 2021/08/15 08:00 | Lars Aregger v Jakub Kroslak | 2-6,2-6 |
| ITF M25 Kottingbrunn | 2021/07/19 10:35 | Jakub Kroslak v Peter Makk | 4-6,6-3,6-10 |
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Roman Postolka v Jakub Kroslak | 4-6,3-6 |
| ITF M25 Poznan | 2021/08/22 08:00 | Fermin Calvo Barcelo v Adam Bronka | 6-0,6-2 |
| ITF M15 Lodz | 2021/08/16 09:30 | Thijmen Loof v Adam Bronka | 6-2,6-4 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Adam Bronka v Alexander Wolfschmidt | 2-6,1-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 08:00 | Adam Bronka v Svyatoslav Ilnytskyy | 5-7,0-6 |
| ITF M15 Szkopje | 2021/06/07 07:00 | Adam Bronka v Franco Capalbo | 1-6,2-6 |
| ITF M15 Szkopje | 2021/05/31 08:00 | Sidane Pontjodikromo v Adam Bronka | 6-1,6-2 |
| ITF M15 Sharm El Sheikh | 2021/04/05 07:30 | Yaron Guberman v Adam Bronka | 6-2,6-3 |
| ITF M15 Sharm El Sheikh | 2021/03/28 09:30 | Omer Yeshaya v Adam Bronka | 7-5,6-1 |