| 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 - Alemanha F11 | 2016/08/18 12:35 | Benjamin Hassan v Johannes Haerteis | 4-6,5-7 |
| 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 |
| Tennis Point Exhibition Series | 2020/07/15 12:25 | Tim Puetz v Benjamin Hassan | 6-4,6-4 |
| Tennis Point Exhibition Series | 2020/07/14 11:15 | Sebastian Fanselow v Benjamin Hassan | 3-6,6-4,6-3 |
| Tennis Point Exhibition Series | 2020/07/10 08:00 | Benjamin Hassan v Jan Choinski | 4-6,2-6 |
| Tennis Point Exhibition Series | 2020/07/09 08:00 | Benjamin Hassan v Constantin Schmitz | 4-6,6-7 |
| 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 |
| DTB German Pro Series | 2020/06/12 14:45 | Johannes Haerteis v Christoph Negritu | 7-6,3-6,6-2 |