Stadium: Court Lisboa Round: 14 Ground: Clay
| ITF M15 Antalya | 2021/04/30 09:30 | Christopher Heyman v Francesco Forti | 7-5,4-6,6-2 |
| ITF M15 Antalya | 2021/04/29 11:45 | Christopher Heyman v Mats Rosenkranz | 4-6,6-4,7-5 |
| ITF M15 Antalya | 2021/04/28 11:00 | Christopher Heyman v Nicholas David Ionel | 6-4,6-4 |
| ITF M15 Antalya | 2021/04/25 09:25 | Fabian Marozsan v Christopher Heyman | 2-6,6-4,2-6 |
| ITF M15 Antalya | 2021/04/24 07:30 | Nicolae Frunza v Christopher Heyman | 3-6,3-6 |
| ITF M15 Antalya | 2021/04/23 07:00 | Oleksandr Ovcharenko v Christopher Heyman | 6-3,0-6,6-7 |
| ITF M15 Antalya | 2021/04/22 08:20 | Emiliano Maggioli v Christopher Heyman | 5-7,4-6 |
| ITF M15 Antalya | 2021/04/20 08:30 | Koray Kirci v Christopher Heyman | 1-6,1-6 |
| ITF M15 Troisdorf | 2021/05/11 11:45 | Max Hans Rehberg v Lucas Gerch | 0-6,6-4,0-6 |
| ITF M15 Antalya | 2021/05/06 08:50 | Lucas Gerch v Sandro Ehrat | 4-6,2-6 |
| ITF M15 Antalya | 2021/05/05 12:25 | Gerald Melzer v Lucas Gerch | 6-7,6-4,4-6 |
| ITF M25 Meerbusch | 2021/04/13 15:05 | Lucas Gerch v Sandro Ehrat | 3-6,4-6 |
| Challenger Marbella | 2021/03/28 10:00 | Lucas Gerch v Timofey Skatov | 5-7,5-7 |
| ITF M25 Vale Do Lobo | 2021/03/10 15:00 | Pedro Araujo v Lucas Gerch | 2-6,6-1,6-4 |
| ITF M25 Faro | 2021/03/03 09:30 | Dan Added v Lucas Gerch | 6-3,6-3 |
| ITF M25 Vale Do Lobo | 2021/02/25 10:30 | Lucas Gerch v Antoine Escoffier | 3-6,1-6 |