Estadio: Court 4 Round: 44 Ground: Clay
| ITF M25 Prostejov | 2021/08/15 08:00 | Lars Aregger v Jakub Kroslak | 2-6,2-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 11:00 | Lars Aregger v Piotr Galus | 3-6,1-6 |
| ITF M25 Most | 2021/05/24 08:00 | Benedikt Emesz v Lars Aregger | 7-6,6-0 |
| ITF M25 Most | 2021/05/23 08:00 | Lars Aregger v Fred Olivier Schommer | 3-6,6-1,10-8 |
| ITF M15 Lódz | 2021/08/18 08:00 | Valerio Aboian v Michal Mikula | 6-4,6-3 |
| ITF M15 Gdynia | 2021/08/10 12:30 | Filip Peliwo v Michal Mikula | 6-3,7-5 |
| ITF M15 Parnu | 2021/08/05 11:20 | Michal Mikula v Otto Virtanen | 3-6,6-3,2-6 |
| ITF M15 Parnu | 2021/08/04 12:30 | Michal Mikula v Petro Orlando Fellin | 6-2,6-0 |
| ITF M15 Parnu | 2021/08/03 08:30 | Michal Mikula v Bartosz Wojnar | 6-0,6-3 |
| Polonia - Tour nacional | 2021/07/14 11:50 | Michal Mikula v Kacper Zuk | 3-6,2-6 |
| Polonia - Tour nacional | 2021/07/13 09:15 | Filip Peliwo v Michal Mikula | 4-6,3-6 |
| ITF M25 Wroclaw | 2021/06/27 12:30 | Yann Wojcik v Michal Mikula | 7-6,6-0 |