Round: 44
| ITF M25 Nussloch | 2020/01/24 19:00 | Johannes Haerteis v Ruben Bemelmans | 4-6,3-6 |
| ITF M25 Nussloch | 2020/01/23 10:55 | Giulio Zeppieri v Johannes Haerteis | 6-3,3-6,6-7 |
| ITF M25 Nussloch | 2020/01/22 12:50 | Jakob Aichhorn v Johannes Haerteis | 2-6,6-4,4-6 |
| ITF M15 Manacor | 2020/01/15 12:35 | Johannes Haerteis v Pablo Llamas Ruiz | 3-6,4-6 |
| ITF M15 Prague | 2019/11/06 14:40 | Oleksii Krutykh v Johannes Haerteis | 4-6,7-6,6-2 |
| Challenger Eckental | 2019/10/29 09:00 | John-Patrick Smith v Johannes Haerteis | 7-6,6-7,7-6 |
| Challenger Hamburg | 2019/10/22 08:00 | Cem Ilkel v Johannes Haerteis | 7-5,6-1 |
| Challenger Ismaning | 2019/10/17 11:00 | Zdenek Kolar v Johannes Haerteis | 6-7,6-7 |
| ITF Greece F5 | 2018/03/25 07:00 | Valentin Guenther v Yannick Stephan Born | 6-4,6-2 |
| ITF Greece F4 | 2018/03/18 09:30 | Clement Larriere v Yannick Stephan Born | 6-7,6-3,6-2 |
| ITF Greece F4 | 2018/03/17 07:30 | Tillmann Erdbories v Yannick Stephan Born | 3-6,4-6 |
| ITF Belgium F1 Qual | 2017/06/18 11:35 | Yannick Stephan Born v Quentin Folliot | 3-6,5-7 |
| ITF Belgium F1 Qual | 2017/06/17 08:00 | Yannick Stephan Born v Felix Morck | 6-2,6-2 |
| ITF Egypt F12 | 2017/04/03 08:00 | Yannick Stephan Born v Philipp Dittmer | 4-6,2-6 |
| ITF Egypt F12 | 2017/04/02 08:00 | Yannick Stephan Born v Mark Fynn | 4-6,6-2,7-5 |
| ITF Egypt F12 | 2017/04/01 07:00 | Daniil Zarichanskiy v Yannick Stephan Born | 6-4,3-6,6-7 |