| Tennis Point Exhibition Series | 2020/05/29 09:30 | Constantin Schmitz v Johannes Haerteis | 3-6,7-6,6-2 |
| Tennis Point Exhibition Series | 2020/05/16 13:00 | Johannes Haerteis v Constantin Schmitz | 1-4,2-4 |
| Tennis Point Exhibition Series | 2020/05/10 08:00 | Constantin Schmitz v Johannes Haerteis | 4-1,3-4,3-4 |
| Tennis Point Exhibition Series | 2020/05/08 09:55 | Johannes Haerteis v Constantin Schmitz | 4-2,4-2 |
| Tennis Point Exhibition Series | 2020/05/03 14:30 | Johannes Haerteis v Constantin Schmitz | 4-2,0-4,4-2 |
| Tennis Point Exhibition Series | 2020/07/23 08:00 | Constantin Schmitz v Hazem Naw | 6-3,2-6,6-4 |
| Tennis Point Exhibition Series | 2020/07/22 10:10 | Constantin Schmitz v Christian Djonov | 7-6,7-5 |
| Tennis Point Exhibition Series | 2020/07/21 08:00 | Constantin Schmitz v Benjamin Hassan | 7-6,6-4 |
| Tennis Point Exhibition Series | 2020/07/18 10:25 | Julien Penzlin v Constantin Schmitz | 1-6,0-6 |
| Tennis Point Exhibition Series | 2020/07/17 14:40 | Sebastian Mortier v Constantin Schmitz | 3-6,0-6 |
| Tennis Point Exhibition Series | 2020/07/16 07:00 | Sebastian Fanselow v Constantin Schmitz | 1-6,6-4,4-6 |
| Tennis Point Exhibition Series | 2020/07/15 07:00 | Julian Worn v Constantin Schmitz | 1-6,2-6 |
| Tennis Point Exhibition Series | 2020/07/14 08:30 | Tim Puetz v Constantin Schmitz | 6-0,6-4 |
| Tennis Point Exhibition Series | 2020/07/23 11:35 | Christian Djonov v Johannes Haerteis | 0-6,2-6 |
| Tennis Point Exhibition Series | 2020/07/22 11:55 | Benjamin Hassan v Johannes Haerteis | 5-7,6-7 |
| Tennis Point Exhibition Series | 2020/07/21 11:35 | Johannes Haerteis v Luca Gelhardt | 6-1,6-3 |
| DTB German Pro Series | 2020/06/26 12:00 | Max Hans Rehberg v Johannes Haerteis | 3-6,2-6 |
| DTB German Pro Series | 2020/06/25 13:35 | Daniel Masur v Johannes Haerteis | 6-7,6-1,5-7 |
| DTB German Pro Series | 2020/06/24 14:10 | Johannes Haerteis v Max Hans Rehberg | 3-6,2-6 |
| DTB German Pro Series | 2020/06/23 12:00 | Cedrik-Marcel Stebe v Johannes Haerteis | 6-4,6-3 |
| DTB German Pro Series | 2020/06/14 13:40 | Johannes Haerteis v Peter Torebko | 3-6,3-6 |