Stadium: Court 2 Round: 25 Ground: Clay
| 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 |
| 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 Grenoble | 2021/02/09 09:00 | Maxence Broville v Lucas Gerch | 4-6,6-7 |
| ITF - M25 Villena | 2021/02/03 13:40 | Jenson Brooksby v Lucas Gerch | 6-3,7-6 |
| ITF - M25 Biel | 2021/04/03 10:15 | Jiri Lehecka v Sandro Ehrat | 6-3,7-6 |
| ITF - M25 Biel | 2021/04/02 10:45 | Dan Added v Sandro Ehrat | 4-6,6-7 |
| ITF - M25 Biel | 2021/04/01 10:05 | Sandro Ehrat v Jelle Sels | 0-6,6-4,7-6 |
| ITF - M25 Biel | 2021/03/31 15:10 | Sandro Ehrat v Antoine Bellier | 6-4,6-7,7-6 |
| Challenger - Lugano | 2021/03/22 12:00 | Tim Van Rijthoven v Sandro Ehrat | 7-6,6-4 |
| Challenger - Lugano | 2021/03/21 12:40 | Sandro Ehrat v Kaichi Uchida | 6-3,7-6 |
| Challenger - Biella | 2021/03/07 12:50 | Kirill Kivattsev v Sandro Ehrat | 7-6,6-3 |
| Challenger - Gran Canaria | 2021/03/02 15:40 | Sandro Ehrat v Filip Horansky | 6-7,7-5,3-6 |