Stadium: Court 1 Round: 26 Ground: Hardcourt indoor
| ITF M25 Hamburg | 2021/10/20 10:50 | Haerteis, Johannes v Balzerani, Riccardo | 6-3,6-4 |
| ITF M25 Jonkoping | 2021/09/20 10:45 | Bergevi, Filip v Haerteis, Johannes | 6-4,7-6 |
| ITF M25 Plaisir | 2021/09/15 11:45 | Haerteis, Johannes v Mitjana, Leny | 4-6,6-7 |
| Challenger Tulln | 2021/09/06 13:00 | Haerteis, Johannes v Horansky, Filip | 6-4,4-6,3-6 |
| Challenger Mallorca | 2021/09/01 18:40 | Haerteis, Johannes v Lacko, Lukas | 2-6,3-6 |
| Challenger Mallorca | 2021/08/31 08:00 | Nicolas Moreno De Alboran v Haerteis, Johannes | 3-6,6-4,4-6 |
| Challenger Mallorca | 2021/08/30 08:00 | Martos Gornes, Sergio v Haerteis, Johannes | 1-6,1-6 |
| Challenger - Prague | 2021/08/24 10:15 | Haerteis, Johannes v Alex Rybakov | 4-6,2-6 |
| ITF M25 Hamburg | 2021/10/19 08:00 | Yannik Steinegger v von Hindte, Leonard | 3-6,3-6 |
| German Championship | 2020/12/10 15:30 | von Hindte, Leonard v Kai Wehnelt | 2-6,1-5 |
| ITF Germany F16 | 2018/10/23 09:00 | von Hindte, Leonard v Giovanni Fonio | 6-7,4-6 |
| ITF Germany F15 | 2018/10/10 12:10 | von Hindte, Leonard v Piotr Grynkowski | 6-7,6-1,3-6 |
| ITF Germany F14 | 2018/10/04 10:00 | von Hindte, Leonard v Boehler, Dominik | 2-6,3-6 |
| ITF Germany F14 | 2018/10/03 12:50 | Novotny, David v von Hindte, Leonard | 4-6,4-6 |
| ITF Portugal F17 | 2018/09/17 15:30 | Niklas Schell v von Hindte, Leonard | 6-1,7-6 |
| ITF Belgium F9 | 2018/08/22 13:00 | Samuel Brosset v von Hindte, Leonard | 6-4,4-6,6-4 |