Stadium: Center Court Round: 14 Ground: Hardcourt outdoor
| Helsinki, Finland | 2021/11/14 09:00 | Haerteis, Johannes v Viktor Durasovic | 4-6,6-7 |
| Challenger Eckental | 2021/11/02 18:15 | Maxime Cressy v Haerteis, Johannes | 6-7,6-4,6-3 |
| Challenger Eckental | 2021/11/01 11:15 | Haerteis, Johannes v Ignatik, Uladzimir | 4-6,6-2,7-6 |
| Challenger Eckental | 2021/10/31 13:30 | Lucas Miedler v Haerteis, Johannes | 3-6,7-5,3-6 |
| Challenger Ismaning | 2021/10/25 11:50 | Otto Virtanen v Haerteis, Johannes | 4-6,6-3,6-3 |
| Challenger Ismaning | 2021/10/24 12:35 | Haerteis, Johannes v Tristan Lamasine | 6-4,6-4 |
| ITF M25 Hamburg | 2021/10/23 10:00 | Henri Squire v Haerteis, Johannes | 6-4,6-4 |
| ITF M25 Hamburg | 2021/10/22 12:10 | Haerteis, Johannes v Daniel Little | 6-4,6-4 |
| Charlottesville, USA, Qualifying | 2017/10/29 19:25 | Hiltzik, Jared v Ammar Faleh Alhogbani | 1-6,6-1,6-3 |
| Coupe Davis | 2017/04/05 08:10 | Ammar Faleh Alhogbani v Babak, Evgeniy | 6-2,4-6,6-4 |
| Coupe Davis | 2017/04/03 09:10 | Yusuf Qaed v Ammar Faleh Alhogbani | 0-6,2-6 |
| Charlottesville, USA, Qualifying | 2016/10/29 16:00 | Ammar Faleh Alhogbani v Chaplin, Jarryd | 6-7,4-6 |