| German Championship | 2020/12/08 09:36 | Hansen, Christian v Johann, Lars | 3-6,3-6 |
| ITF M15 Forbach | 2020/09/28 07:00 | Johann, Lars v Alexis Canter | 5-7,2-6 |
| ITF - M25 Nussloch | 2020/01/19 09:00 | Johann, Lars v Lang, Robin | 0-6,2-6 |
| Sarreguemines, Singles M-ITF-FRA-22A | 2019/11/17 14:55 | Johann, Lars v Dragoni, Alessandro | 4-6,2-6 |
| ITF - M15 Antalya | 2019/10/16 08:00 | Johann, Lars v Milan Welte | 2-6,0-6 |
| ITF - M15 Antalya | 2019/10/15 07:00 | Johann, Lars v Ozcelik, Bulut | 6-1,6-4 |
| ITF - M15 Antalya | 2019/10/14 07:00 | Patric Prinoth v Johann, Lars | 6-4,6-7,6-10 |
| ITF - M15 Antalya | 2019/10/13 07:00 | Veremeychuk, Danylo v Johann, Lars | 6-4,2-6,3-10 |
| DTB German Pro Series | 2020/06/26 08:00 | Marvin Moeller v Kai Wehnelt | 6-4,6-0 |
| DTB German Pro Series | 2020/06/25 08:00 | Kai Wehnelt v Seifert, Stefan | 6-4,6-2 |
| DTB German Pro Series | 2020/06/24 10:30 | Tom Schonenberg v Kai Wehnelt | 7-6,6-3 |
| DTB German Pro Series | 2020/06/12 11:05 | Peter Heller v Kai Wehnelt | 6-4,6-4 |
| DTB German Pro Series | 2020/06/11 09:45 | Max Wiskandt v Kai Wehnelt | 6-4,3-6,1-6 |
| DTB German Pro Series | 2020/06/10 13:50 | Oscar Otte v Kai Wehnelt | 6-2,6-1 |
| DTB German Pro Series | 2020/06/09 09:25 | Lenz, Julian v Kai Wehnelt | 7-6,3-6,4-6 |
| ITF - M15 Doha | 2020/03/12 12:00 | Kai Wehnelt v Dan Alexandru Tomescu | 4-6,6-3,6-4 |