Stadium: Court 4 Round: 26 Ground: Clay
| ITF M25 Meerbusch | 2021/04/13 15:05 | Lucas Gerch v Sandro Ehrat | 3-6,4-6 |
| ITF M15 Anif | 2020/08/27 11:35 | Lucas Gerch v Sandro Ehrat | 6-7,5-7 |
| ITF Germany F9 | 2018/07/24 17:05 | Sandro Ehrat v Lucas Gerch | 6-2,6-3 |
| 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 |
| ITF M25 Vale Do Lobo | 2021/02/24 15:05 | Lucas Gerch v Quentin Robert | 6-2,2-6,6-2 |
| ITF M15 Grenoble | 2021/02/11 12:05 | Elmar Ejupovic v Lucas Gerch | 6-4,6-1 |
| ITF M15 - Antalya | 2021/05/05 10:10 | Riccardo Balzerani v Sandro Ehrat | 2-6,6-7 |
| ITF M15 - Antalya | 2021/05/02 09:20 | Sandro Ehrat v Jeroen Vanneste | 4-6,3-6 |
| ITF M15 - Antalya | 2021/04/30 07:15 | Sandro Ehrat v Samuel Vincent Ruggeri | 7-5,6-1 |
| ITF M15 - Antalya | 2021/04/29 07:25 | Sandro Ehrat v Mircea-Alexandru Jecan | 6-0,6-2 |
| ITF M15 - Antalya | 2021/04/27 10:40 | Sandro Ehrat v Mert Arabaci | 6-0,6-1 |
| ITF M15 - Antalya | 2021/04/27 10:00 | Sandro Ehrat v Mert Arabaci | 6-0,5-1 |
| ITF M25 Meerbusch | 2021/04/15 11:45 | Sandro Ehrat v Michael Vrbensky | 1-6,4-6 |
| ITF M25 Meerbusch | 2021/04/13 15:05 | Lucas Gerch v Sandro Ehrat | 3-6,4-6 |