Ground: Hardcourt outdoor
| Challenger Oeiras Qual | 2022/04/03 11:25 | Lucas Gerch v Kai Wehnelt | 6-2,3-6,6-0 |
| ITF M25 Frankfurt am Main | 2021/08/11 15:30 | Kai Wehnelt v Lucas Gerch | 6-3,2-6,4-6 |
| ITF M15 Troisdorf | 2021/05/13 09:00 | Kai Wehnelt v Lucas Gerch | 4-6,6-4,5-7 |
| ITF M25 Nussloch | 2025/01/20 16:18 | Kai Wehnelt v Finn Bass | 5-7,6-0,0-1 |
| ITF M15 Cadolzburg | 2025/01/17 14:00 | Kai Wehnelt v Justin Engel | 6-7,2-5 |
| ITF M15 Cadolzburg | 2025/01/16 10:00 | Kai Wehnelt v Niklas Schell | 6-3,6-6 |
| ITF M15 Cadolzburg | 2025/01/14 10:00 | Niels Visker v Kai Wehnelt | 7-6,4-6,6-7 |
| ITF M15 Luanda | 2024/11/30 10:00 | Robert Strombachs v Kai Wehnelt | 6-3,6-3 |
| ITF M15 Luanda | 2024/11/29 10:00 | Kai Wehnelt v Yannik Kelm | 6-3,6-0 |
| ITF M15 Luanda | 2024/11/28 10:00 | Kai Wehnelt v Patrik Oplustil | 6-0,6-1 |
| ITF M15 Luanda | 2024/11/27 11:50 | Kai Wehnelt v Parth Aggarwal | 7-5,6-1 |
| ITF M25 Doha | 2025/01/23 12:00 | Lucas Gerch v Cem Ilkel | 3-6,6-7 |
| ITF M25 Doha | 2025/01/21 12:00 | Gabi Adrian Boitan v Lucas Gerch | 6-7,4-6 |
| ITF M25 Sarreguemines | 2024/10/25 13:50 | Andrea Guerrieri v Lucas Gerch | 6-2,7-6 |
| ITF M25 Sarreguemines | 2024/10/24 11:40 | Elmar Ejupovic v Lucas Gerch | 7-6,6-7,3-6 |
| ITF M25 Sarreguemines | 2024/10/23 15:00 | Antoine Berger v Lucas Gerch | 3-6,5-7 |
| ITF M15 Offenbach | 2024/10/16 13:20 | Lucas Gerch v Roland Stuurman | 3-6,6-4,3-6 |
| Challenger Szczecin | 2024/09/11 08:00 | Adrian Andreev v Lucas Gerch | 3-6,6-4,6-3 |
| Challenger Szczecin | 2024/09/10 08:00 | Martin Krumich v Lucas Gerch | 6-2,0-6,4-6 |