Round: 44
| Exo Tennis Germany Series | 2020/05/02 09:50 | Benjamin Hassan v Haerteis, Johannes | 1-4,4-3,2-4 |
| Challenger - Tallahassee | 2019/04/22 14:00 | Benjamin Hassan v Haerteis, Johannes | 6-4,6-1 |
| ITF Germany F11 | 2016/08/18 12:35 | Benjamin Hassan v Haerteis, Johannes | 4-6,5-7 |
| Exo Tennis Germany Series | 2020/05/10 08:00 | Schmitz, Constantin v Haerteis, Johannes | 4-1,3-4,3-4 |
| Exo Tennis Germany Series | 2020/05/09 17:40 | Haerteis, Johannes v Puetz, Tim | 1-4,2-4 |
| Exo Tennis Germany Series | 2020/05/09 10:40 | Jan Choinski v Haerteis, Johannes | 4-3,4-2 |
| Exo Tennis Germany Series | 2020/05/08 13:30 | Haerteis, Johannes v Hazem Naw | 3-4,3-4 |
| Exo Tennis Germany Series | 2020/05/08 09:55 | Haerteis, Johannes v Schmitz, Constantin | 4-2,4-2 |
| Exo Tennis Germany Series | 2020/05/07 13:10 | Brown, Dustin v Haerteis, Johannes | 4-0,4-3 |
| Exo Tennis Germany Series | 2020/05/07 09:20 | Haerteis, Johannes v JUNAID R. | 4-0,4-1 |
| Exo Tennis Germany Series | 2020/05/04 14:20 | Haerteis, Johannes v Jan Choinski | 2-4,2-4 |
| Exo Tennis Germany Series | 2020/05/10 11:40 | Puetz, Tim v Benjamin Hassan | 4-1,4-1 |
| Exo Tennis Germany Series | 2020/05/09 14:40 | Schmitz, Constantin v Benjamin Hassan | 4-2,3-4,0-4 |
| Exo Tennis Germany Series | 2020/05/09 08:00 | Born, Yannick Stephan v Benjamin Hassan | 1-4,1-4 |
| Exo Tennis Germany Series | 2020/05/08 14:35 | Yannick Hanfmann v Benjamin Hassan | 4-3,4-3 |
| Exo Tennis Germany Series | 2020/05/08 09:05 | Puetz, Tim v Benjamin Hassan | 4-0,4-2 |
| Exo Tennis Germany Series | 2020/05/07 18:50 | Daniel Altmaier v Benjamin Hassan | 4-3,4-0 |
| Exo Tennis Germany Series | 2020/05/07 12:00 | Benjamin Hassan v Werner, Jean-Marc | 4-3,4-3 |
| Exo Tennis Germany Series | 2020/05/04 13:15 | Benjamin Hassan v Florian Broska | 3-4,2-4 |