| 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 09:50 | Hazem Naw v Christian Djonov | 6-1,7-5 |
| 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 |
| DTB German Pro Series | 2020/06/13 15:30 | Johannes Haerteis v Sebastian Fanselow | 6-4,6-4 |