Stadium: Hortkorn Court Round: 25 Ground: Clay
| ITF M25 Hammamet | 2024/02/15 08:30 | Peter Heller v Carlos Sanchez Jover | 5-7,5-7 |
| ITF M25 Hammamet | 2024/02/14 09:55 | Peter Heller v Sanhui Shin | 6-3,6-3 |
| ITF M15 Antalya | 2024/01/17 09:50 | Niccolo Catini v Peter Heller | 7-5,6-2 |
| ITF M15 Antalya | 2024/01/14 08:00 | Filip Cristian Jianu v Peter Heller | 7-6,6-4 |
| ITF M15 Antalya | 2024/01/13 07:00 | Peter Heller v Carlos Gimeno Valero | 3-6,7-6,6-1 |
| ITF M15 Antalya | 2024/01/12 10:30 | Cengiz Aksu v Peter Heller | 3-6,6-3,3-6 |
| ITF M15 Antalya | 2024/01/11 12:15 | Niklas Schell v Peter Heller | 3-6,2-6 |
| ITF M15 Antalya | 2024/01/11 08:05 | David Prasievi v Peter Heller | 1-6,1-6 |
| Challenger Manama | 2024/02/13 08:00 | Mohamed Aziz Dougaz v Rudolf Molleker | 6-3,6-1 |
| Challenger Koblenz | 2024/02/02 17:00 | Jurij Rodionov v Rudolf Molleker | 6-3,7-5 |
| Challenger Koblenz | 2024/01/31 14:40 | Alexander Blockx v Rudolf Molleker | 3-6,0-6 |
| Challenger Koblenz | 2024/01/30 14:25 | Martin Klizan v Rudolf Molleker | 0-6,2-6 |
| Challenger Ottignies | 2024/01/23 21:45 | Raphael Collignon v Rudolf Molleker | 6-1,6-1 |
| Australian Open | 2024/01/11 00:45 | Rudolf Molleker v Stefano Napolitano | 6-1,4-6,2-6 |
| Australian Open | 2024/01/09 06:10 | Ivan Gakhov v Rudolf Molleker | 4-6,4-6 |
| Challenger Canberra | 2024/01/03 00:30 | Rudolf Molleker v Gabriel Diallo | 6-7,3-6 |