| DTB German Pro Series | 2020/06/27 10:30 | Sebastian Fanselow v Schmitz, Constantin | 6-3,6-2 |
| DTB German Pro Series | 2020/06/26 08:00 | Schmitz, Constantin v Sebastian Fanselow | 3-6,2-6 |
| DTB German Pro Series | 2020/06/25 08:00 | Schmitz, Constantin v Adrian Oetzbach | 6-3,7-5 |
| DTB German Pro Series | 2020/06/24 08:00 | Schmitz, Constantin v Max Wiskandt | 6-4,5-7,6-7 |
| Exo Tennis Germany Series | 2020/06/14 08:00 | Florian Broska v Schmitz, Constantin | 6-7,4-6 |
| Exo Tennis Germany Series | 2020/06/13 10:10 | Benjamin Hassan v Schmitz, Constantin | 6-1,6-3 |
| Exo Tennis Germany Series | 2020/06/12 11:25 | Jan Choinski v Schmitz, Constantin | 6-0,4-6,4-6 |
| Exo Tennis Germany Series | 2020/06/11 09:30 | Gelhardt, Luca v Schmitz, Constantin | 3-6,6-7 |