Stadium: Court 5 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2021/10/06 08:00 | Lorenzo Bocchi v Federico Salomone | 1-6,6-3,6-1 |
| ITF M25 Skopje | 2021/10/01 10:15 | Lorenzo Bocchi v Clement Tabur | 4-6,4-6 |
| ITF M25 Skopje | 2021/09/29 08:15 | Lorenzo Bocchi v William Ma | 6-2,6-0 |
| ITF M15 Vyshkovo | 2021/09/23 14:35 | Lorenzo Bocchi v Yann Wojcik | 5-7,7-5,3-6 |
| ITF M15 Vyshkovo | 2021/09/23 08:30 | Lorenzo Bocchi v Nikita Alosha | 6-2,6-4 |
| ITF M15 Bad Waltersdorf | 2021/08/31 12:00 | Evgeny Tyurnev v Lorenzo Bocchi | 6-4,6-4 |
| ITF M15 Huy | 2021/08/26 09:00 | Lorenzo Bocchi v Benjamin Dhoe | 6-1,3-6,4-6 |
| ITF M15 Huy | 2021/08/24 11:05 | Lorenzo Bocchi v Tibo Colson | 6-4,6-2 |
| ITF M15 Sharm El Sheikh | 2021/10/06 08:00 | Szymon Kielan v Alexandros Skorilas | 6-4,6-2 |
| ITF M15 Vyshkovo | 2021/09/21 07:00 | Szymon Kielan v Artem Smirnov | 6-4,3-6,3-6 |
| Challenger Szczecin | 2021/09/12 09:00 | Szymon Kielan v Alex Rybakov | 2-6,6-2,3-6 |
| Challenger Warsaw | 2021/08/26 13:00 | Lucas Miedler v Szymon Kielan | 7-5,6-4 |
| Challenger Warsaw | 2021/08/25 08:00 | Szymon Kielan v Goncalo Oliveira | 7-5,6-0 |
| ITF M15 Lodz | 2021/08/19 10:30 | Daniel Michalski v Szymon Kielan | 3-6,7-5,6-3 |
| ITF M15 Lodz | 2021/08/18 09:30 | Roman Andres Burruchaga v Szymon Kielan | 6-7,3-6 |
| ITF M15 Gdynia | 2021/08/12 10:25 | Szymon Kielan v Alexis Musialek | 3-6,4-6 |