Stadium: Court 2 Round: 54 Ground: Clay
| ITF M25 Wetzlar | 2023/07/31 08:00 | Tristan Nitschke v Johann, Lars | 5-7,1-6 |
| ITF M25 Arlon | 2023/06/28 08:00 | Johann, Lars v Chris Rodesch | 2-6,7-6,1-6 |
| ITF M25 Arlon | 2023/06/27 10:10 | Johann, Lars v Pisane, Tom | 7-5,6-2 |
| ITF M25 Arlon | 2023/06/26 13:10 | Wojcik, Jakub v Johann, Lars | 2-6,2-6 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/18 09:00 | Johann, Lars v Lodewijk Weststrate | 4-6,2-6 |
| ITF M15 Frankfurt Am Main | 2022/08/08 08:00 | Vojtech Mares v Johann, Lars | 6-1,6-2 |
| ITF M25 Wetzlar | 2022/08/02 08:30 | Luigi Sorrentino v Johann, Lars | 6-1,6-1 |
| ITF M25 Wetzlar | 2022/08/01 08:00 | Johann, Lars v Adrien Gobat | 6-3,4-6,10-3 |
| ITF M25 Wetzlar | 2023/07/31 08:00 | Dominique Graf v Sven Corbinais | 6-7,7-6,5-10 |
| ITF M25 The Hague | 2023/07/02 10:30 | Sven Corbinais v van Baal, Aloys Johannes Willem | 4-6,4-6 |
| ITF M15 Casablanca | 2023/06/26 13:30 | Sven Corbinais v Bruna, Esteban | 5-7,2-6 |
| ITF M15 Casablanca | 2023/06/20 09:00 | Lorenzo Carboni v Sven Corbinais | 6-2,7-5 |
| ITF - M15 Monastir | 2023/04/03 11:30 | Zhan Zheng v Sven Corbinais | 4-6,6-4,11-9 |
| ITF - M15 Monastir | 2023/03/27 08:30 | Sven Corbinais v van Emburgh, Jake | 6-7,1-6 |
| ITF - M15 Monastir | 2023/03/19 08:00 | Sven Corbinais v Deleersnyder, Clement | 2-6,2-6 |
| ITF M15 Maputo | 2022/10/13 07:30 | Sven Corbinais v Guy Orly Iradukunda | 2-6,6-4,4-6 |