Stadium: Court 1 Round: 28 Ground: Clay
| Challenger Tulln MD | 2021/09/07 12:15 | Erler/Miedler v Haerteis/Hassan | 3-6,6-2,9-11 |
| ITF M25 Manacor MD | 2022/01/15 15:30 | Barroso Campos/Morillo v Haerteis/Hassan | 7-6,6-4 |
| ITF M25 Manacor MD | 2022/01/14 16:45 | Haerteis/Hassan v P D L Gomila/Sakellaridis | 7-5,6-1 |
| ITF M25 Manacor MD | 2022/01/13 16:45 | Gentzsch/Zima v Haerteis/Hassan | 1-6,2-6 |
| ITF M25 Manacor MD | 2022/01/12 15:00 | Bax/Wallart v Haerteis/Hassan | 4-6,4-6 |
| Challenger Tulln MD | 2021/09/10 08:30 | Haerteis/Hassan v Matos/M R Alves | 3-6,6-7 |
| Challenger Tulln MD | 2021/09/09 09:00 | Haerteis/Hassan v Gengel/Ignatik | 6-3,6-3 |
| Challenger Tulln MD | 2021/09/07 12:15 | Erler/Miedler v Haerteis/Hassan | 3-6,6-2,9-11 |
| Challenger Ludwigshafen MD | 2019/07/03 15:30 | Lammons/Romboli v Haerteis/Hassan | 6-2,6-7,10-3 |
| Challenger Forli MD | 2022/01/20 13:25 | Erler/Miedler v Forejtek/Sels | 6-7,6-4,4-10 |
| Challenger Forli MD | 2022/01/19 12:40 | Erler/Miedler v Karlovskiy/Tiurnev | 7-5,6-2 |
| Challenger Forli MD | 2021/12/11 14:20 | Erler/Miedler v Bortolotti/Gornes | 6-4,6-2 |
| Challenger Forli MD | 2021/12/10 13:00 | Erler/Miedler v Echargui/Jebens | 6-7,6-4,10-7 |
| Challenger Forli MD | 2021/12/09 14:25 | Erler/Miedler v Brouwer/Smits | 6-3,7-5 |
| Challenger Forli MD | 2021/12/07 14:25 | Erler/Miedler v Lock/Lock | 6-3,6-0 |
| Challenger Forli MD | 2021/12/02 14:00 | Erler/Miedler v Rosol/Sachko | 6-4,3-6,9-11 |
| Challenger Forli MD | 2021/11/30 17:10 | Erler/Miedler v Angelini/Gaio | 6-3,7-6 |