Stadium: Court 7 Round: 62 Ground: Clay
| ITF M25 Ricany | 2021/08/29 10:30 | Lars Aregger v Krystof Zapsky | 6-7,2-6 |
| ITF M25 Poznan | 2021/08/22 08:00 | Lars Aregger v Michal Mikula | 1-6,0-6 |
| 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 M25 Poznan | 2021/08/22 08:00 | Aristotelis Thanos v Peter Samosi | 6-1,6-2 |
| ITF M25 Prostejov | 2021/08/15 09:00 | Christopher Patzanovsky v Peter Samosi | 6-0,6-1 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/01 13:55 | Simon Sedliak v Peter Samosi | 6-2,7-5 |
| ITF M25 Wroclaw | 2021/06/27 11:00 | Alibek Kachmazov v Peter Samosi | 6-2,6-1 |
| ITF M15 Bucharest | 2021/05/23 14:00 | Jaimee Floyd Angele v Peter Samosi | 6-2,6-1 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 08:30 | Jan Jermar v Peter Samosi | 7-6,6-0 |
| ITF M25 Prague | 2021/05/09 12:30 | Peter Samosi v Patrik Rikl | 4-6,0-6 |
| ITF M15 Sibenik | 2021/04/18 10:00 | Domagoj Biljesko v Peter Samosi | 6-2,6-2 |