Stadium: Court 10 Round: 62 Ground: Clay
| ITF M15 Gdynia | 2021/08/09 08:00 | Piotr Galus v Alexis Canter | 2-6,1-6 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Mikolaj Borkowski v Piotr Galus | 6-7,1-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 14:10 | Robert Rumler v Piotr Galus | 7-5,7-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 11:00 | Lars Aregger v Piotr Galus | 3-6,1-6 |
| Polish National Tour | 2021/07/12 11:30 | Maciej Rajski v Piotr Galus | 6-1,6-2 |
| ITF M15 Monastir | 2020/10/25 09:00 | Taiyo Yamanaka v Piotr Galus | 6-3,6-2 |
| ITF M15 Monastir | 2020/10/19 08:30 | Mirko Martinez v Piotr Galus | 6-2,6-4 |
| ITF M15 Monastir | 2020/10/18 11:00 | Piotr Galus v Juan Ignacio Alcalde | 7-5,6-4 |
| ITF M25 Telfs | 2021/07/12 13:00 | Tadeas Paroulek v Leon Hoeveler | 6-1,6-1 |
| ITF M25 Telfs | 2021/07/11 09:00 | Leon Hoeveler v Jeremy Schifris | 1-6,6-0,10-6 |
| ITF M25 Wroclaw | 2021/06/27 12:30 | Leon Hoeveler v Petr Michnev | 2-6,1-6 |
| ITF M25 Most | 2021/05/23 14:00 | Leon Hoeveler v Zdenek Derkas | 4-6,1-6 |
| ITF M25 Jablonec Nad Nisou | 2021/05/17 08:30 | Andrew Paulson v Leon Hoeveler | 6-1,6-2 |
| ITF M15 Troisdorf | 2021/05/10 12:30 | Leon Hoeveler v Mattia Bellucci | 2-6,4-6 |
| ITF M15 Troisdorf | 2021/05/09 13:00 | Leon Hoeveler v Noel Larwig | 6-3,6-0 |
| ITF M15 Monastir | 2021/03/22 14:30 | Leon Hoeveler v Aristotelis Thanos | 1-6,1-6 |