Stadium: Court 6 Round: 44 Ground: Clay
| ITF M15 Poprad | 2021/07/04 11:00 | Dominik Palan v Simon Sedliak | 6-3,6-1 |
| ITF M15 Novomoskovsk | 2021/05/31 06:15 | Aleksandr Braynin v Simon Sedliak | 7-6,6-1 |
| ITF M15 Novomoskovsk | 2021/05/30 06:15 | Sikorski, Philipp v Simon Sedliak | 1-6,6-7 |
| ITF - M15 Monastir | 2021/04/19 11:00 | Bergevi, Filip v Simon Sedliak | 6-1,6-2 |
| ITF - M15 Monastir | 2021/04/18 10:00 | Simon Sedliak v Andrej Krajcik | 6-1,6-0 |
| ITF - M15 Monastir | 2021/04/11 09:00 | Simon Sedliak v Maier, Jonas | 2-6,4-6 |
| ITF M25 Wroclaw | 2021/06/27 11:00 | Alibek Kachmazov v Samosi, Peter | 6-2,6-1 |
| ITF - M15 Bucarest | 2021/05/23 14:00 | Jaimee Floyd Angele v Samosi, Peter | 6-2,6-1 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 08:30 | Jan Jermar v Samosi, Peter | 7-6,6-0 |
| ITF M25 Prague | 2021/05/09 12:30 | Samosi, Peter v Rikl, Patrik | 4-6,0-6 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/18 10:00 | Domagoj Biljesko v Samosi, Peter | 6-2,6-2 |
| ITF M25 Jablonec Nad Nisou | 2020/09/20 08:00 | Matuszewski, Piotr v Samosi, Peter | 6-0,6-0 |
| ITF M25 Prague | 2020/09/13 13:30 | Samosi, Peter v Lahky, Nikolas | 1-6,2-6 |
| ITF M25 Poznan | 2020/08/24 11:00 | Samosi, Peter v Lahky, Nikolas | 2-6,3-6 |