Round: 44
| Tennis Point Exhibition Series | 2020/07/22 11:55 | Benjamin Hassan v Johannes Haerteis | 5-7,6-7 |
| Tennis Point Exhibition Series | 2020/05/10 14:25 | Johannes Haerteis v Benjamin Hassan | 3-4,3-4 |
| Tennis Point Exhibition Series | 2020/05/02 09:50 | Benjamin Hassan v Johannes Haerteis | 1-4,4-3,2-4 |
| Challenger - Tallahassee | 2019/04/22 14:00 | Benjamin Hassan v Johannes Haerteis | 6-4,6-1 |
| ITF Germany F11 | 2016/08/18 12:35 | Benjamin Hassan v Johannes Haerteis | 4-6,5-7 |
| Tennis Point Exhibition Series | 2020/07/25 08:00 | Daniel Vishnick v Johannes Haerteis | 3-6,3-6 |
| Tennis Point Exhibition Series | 2020/07/24 08:00 | Constantin Schmitz v Johannes Haerteis | 2-6,2-6 |
| 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 |
| Tennis Point Exhibition Series | 2020/07/25 11:00 | Benjamin Hassan v Christian Djonov | 6-2,6-4 |
| Tennis Point Exhibition Series | 2020/07/24 11:20 | Hazem Naw v Benjamin Hassan | 6-7,3-6 |
| Tennis Point Exhibition Series | 2020/07/23 10:15 | Benjamin Hassan v Luca Gelhardt | 6-2,6-4 |
| 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 08:00 | Constantin Schmitz v Benjamin Hassan | 7-6,6-4 |
| Tennis Point Exhibition Series | 2020/07/18 07:00 | Dominik Fritsche v Benjamin Hassan | 3-6,3-6 |
| Tennis Point Exhibition Series | 2020/07/17 12:05 | Julian Worn v Benjamin Hassan | 2-6,4-6 |
| Tennis Point Exhibition Series | 2020/07/16 16:15 | Sebastian Mortier v Benjamin Hassan | 1-6,1-6 |