Stadium: Court 1 Round: 25 Ground: Clay
| ITF M15 Gdynia | 2021/08/15 10:00 | Filip Peliwo v Roman Andres Burruchaga | 7-6,6-7,1-6 |
| ITF M15 Gdynia | 2021/08/14 09:30 | Alexis Musialek v Roman Andres Burruchaga | 1-6,3-6 |
| ITF M15 Gdynia | 2021/08/13 09:00 | Roman Andres Burruchaga v Daniel De Jonge | 7-6,6-1 |
| ITF M15 Gdynia | 2021/08/12 12:35 | Pol Toledo Bague v Roman Andres Burruchaga | 2-6,3-6 |
| ITF M15 Gdynia | 2021/08/11 08:00 | Roman Andres Burruchaga v Martyn Pawelski | 6-3,6-2 |
| ITF M15 Gdynia | 2021/08/10 08:00 | Roman Andres Burruchaga v Filip Kolasinski | 6-2,6-4 |
| ITF M15 Gdynia | 2021/08/09 08:00 | Roman Andres Burruchaga v Vojtech Vlkovsky | 6-4,6-1 |
| ITF M15 Telavi | 2021/08/03 11:10 | Roman Andres Burruchaga v Oleg Prihodko | 1-6,4-6 |
| ITF M15 Gdynia | 2021/08/12 10:25 | Szymon Kielan v Alexis Musialek | 3-6,4-6 |
| ITF M15 Gdynia | 2021/08/11 14:25 | Luke Johnson v Szymon Kielan | 1-6,6-7 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/04 17:10 | David Poljak v Szymon Kielan | 7-5,6-3 |
| Polish National Tour | 2021/07/11 10:00 | Kamil Majchrzak v Szymon Kielan | 6-1,7-6 |
| ITF M25 Wroclaw | 2021/06/30 13:15 | Gonzalo Lama v Szymon Kielan | 6-1,6-2 |
| ITF M25 Wroclaw | 2021/06/29 08:00 | Szymon Kielan v Mateusz Terczynski | 6-3,6-2 |
| ITF M25 Wroclaw | 2021/06/28 11:00 | Lewie Lane v Szymon Kielan | 3-6,0-6 |
| ITF M25 Wroclaw | 2021/06/27 12:30 | Szymon Kielan v Stepan Pecak | 4-6,6-4,10-8 |