Stadium: Court 5 Round: 166 Ground: Clay
| ITF Germany F11 | 2016/08/18 12:35 | Benjamin Hassan v Johannes Haerteis | 4-6,5-7 |
| Challenger Sarasota | 2019/04/15 14:00 | Benjamin Hassan v Zane Khan | 3-6,2-6 |
| ITF M15 Rovinj | 2019/03/21 09:00 | Peter Nagy v Benjamin Hassan | 6-3,4-6,6-1 |
| ITF M15 Rovinj | 2019/03/20 13:05 | Matej Sabanov v Benjamin Hassan | 4-6,6-3,3-6 |
| ITF M15 Porec | 2019/03/15 09:00 | Benjamin Hassan v Ergi Kirkin | 6-1,4-6,2-6 |
| ITF M15 Porec | 2019/03/14 09:00 | Benjamin Hassan v Domagoj Biljesko | 6-4,6-4 |
| ITF M15 Porec | 2019/03/12 14:40 | Benjamin Hassan v Peter Heller | 3-6,7-6,6-4 |
| ITF M25 Glasgow | 2019/02/19 10:00 | Benjamin Hassan v Igor Sijsling | 5-7,3-6 |
| ITF M25 Barnstaple | 2019/02/15 12:55 | Tim Van Rijthoven v Benjamin Hassan | 6-3,6-4 |
| Challenger Sarasota | 2019/04/15 14:00 | Harri Heliovaara v Johannes Haerteis | 6-3,6-2 |
| Challenger Barletta | 2019/04/09 13:55 | Johannes Haerteis v Andrea Pellegrino | 4-6,4-6 |
| Challenger Barletta | 2019/04/08 08:00 | Johannes Haerteis v Marco Bortolotti | 4-6,6-1,6-4 |
| Challenger Santiago | 2019/03/05 15:40 | Johannes Haerteis v Pedro Martinez | 1-6,4-6 |
| Challenger Santiago | 2019/03/04 15:30 | Johannes Haerteis v Sumit Nagal | 6-4,0-6,6-3 |
| Challenger Morelos | 2019/02/19 16:00 | Alejandro Gonzalez v Johannes Haerteis | 6-3,6-1 |
| ITF M25 Barnstaple | 2019/02/12 10:00 | Jack Draper v Johannes Haerteis | 7-6,6-3 |
| Challenger Koblenz | 2019/01/15 12:45 | Filip Horansky v Johannes Haerteis | 7-6,6-4 |