Round: 44
| 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 | 2020/05/01 15:00 | Yannick Hanfmann v Benjamin Hassan | 4-2,3-4,4-1 |
| Tennis Point Exhibition Series | 2020/05/01 07:00 | Jean-Marc Werner v Benjamin Hassan | 2-4,2-4 |
| Davis Cup | 2020/03/07 13:55 | Benjamin Hassan v Wishaya Trongcharoenchaikul | 6-2,6-0 |
| Davis Cup | 2020/03/06 08:20 | Benjamin Hassan v Jirat Navasirisomboon | 6-1,6-2 |
| Challenger Koblenz | 2020/02/18 17:00 | Ergi Kirkin v Benjamin Hassan | 4-6,6-1,6-4 |
| Challenger Ortisei | 2019/11/11 14:00 | Lorenzo Musetti v Benjamin Hassan | 6-4,6-2 |
| Challenger Ismaning | 2019/10/16 08:00 | Adrian Menendez-Maceiras v Benjamin Hassan | 6-2,6-4 |
| Challenger Glasgow | 2019/09/16 19:25 | Benjamin Hassan v Luca Vanni | 4-6,1-6 |
| Tennis Point Exhibition Series | 2020/05/01 11:10 | Johannes Haerteis v Jan Choinski | 4-2,4-2 |
| Tennis Point Exhibition Series | 2020/05/01 09:20 | Yannick Hanfmann v Johannes Haerteis | 4-0,4-1 |
| ITF M25 Las Vegas | 2020/03/07 02:30 | Johannes Haerteis v Petros Chrysochos | 2-6,7-5,4-6 |
| ITF M25 Las Vegas | 2020/03/05 19:45 | Johannes Haerteis v Alex Blumenberg | 7-6,6-1 |
| ITF M25 Las Vegas | 2020/03/04 19:15 | Johannes Haerteis v Ryan Shane | 6-4,6-4 |
| Challenger Columbus | 2020/02/27 19:50 | Johannes Haerteis v Cedrik-Marcel Stebe | 4-6,1-6 |
| Challenger Columbus | 2020/02/26 19:30 | Juan Pablo Ficovich v Johannes Haerteis | 2-6,6-7 |
| Challenger Columbus | 2020/02/25 15:00 | Alexander Brown v Johannes Haerteis | 3-6,6-7 |