Stadium: Center Court Neuss Round: 1
| ITF M25 Karlsruhe | 2019/06/03 09:00 | Adrian Oetzbach v Constantin Schmitz | 6-4,7-5 |
| DTB German Pro Series | 2020/06/24 08:00 | Constantin Schmitz v Max Wiskandt | 6-4,5-7,6-7 |
| Tennis Point Exhibition Series | 2020/06/14 08:00 | Florian Broska v Constantin Schmitz | 6-7,4-6 |
| Tennis Point Exhibition Series | 2020/06/13 10:10 | Benjamin Hassan v Constantin Schmitz | 6-1,6-3 |
| Tennis Point Exhibition Series | 2020/06/12 11:25 | Jan Choinski v Constantin Schmitz | 6-0,4-6,4-6 |
| Tennis Point Exhibition Series | 2020/06/11 09:30 | Luca Gelhardt v Constantin Schmitz | 3-6,6-7 |
| Tennis Point Exhibition Series | 2020/06/10 12:05 | Constantin Schmitz v Tim Puetz | 6-3,3-6,4-6 |
| Tennis Point Exhibition Series | 2020/06/07 11:25 | Constantin Schmitz v Jan Choinski | 6-1,3-6,6-1 |
| Tennis Point Exhibition Series | 2020/06/06 11:30 | Yannick Stephan Born v Constantin Schmitz | 4-6,3-6 |
| DTB German Pro Series | 2020/06/24 11:05 | Adrian Oetzbach v Sebastian Fanselow | 3-6,4-6 |
| DTB German Pro Series | 2020/06/14 08:30 | Adrian Oetzbach v Niklas Guttau | 6-3,2-6,6-2 |
| DTB German Pro Series | 2020/06/13 15:30 | Cedrik-Marcel Stebe v Adrian Oetzbach | 6-1,7-6 |
| ITF M15 Austin | 2019/11/20 17:55 | Adrian Oetzbach v Ruan Roelofse | 0-6,3-6 |
| ITF M15 Austin | 2019/11/19 16:00 | Adrian Oetzbach v Leighton Allen | 6-4,2-6,5-10 |
| ITF M15 Austin | 2019/11/18 16:00 | Adrian Oetzbach v Julian Noah Steinhausen | 6-0,6-3 |
| ITF M25 Malibu | 2019/11/06 01:05 | Evan Song v Adrian Oetzbach | 6-7,6-3,6-4 |
| ITF M25 Houston | 2019/09/19 01:05 | Adrian Oetzbach v Alex Rybakov | 2-6,2-6 |