Stadium: Center Court Oberhaching Round: 1
| DTB German Pro Series | 2020/06/24 08:00 | Matthias Bachinger v Peter Heller | 6-7,4-6 |
| DTB German Pro Series | 2020/06/23 09:15 | Peter Heller v Philip Florig | 6-0,6-1 |
| DTB German Pro Series | 2020/06/12 11:05 | Peter Heller v Kai Wehnelt | 6-4,6-4 |
| DTB German Pro Series | 2020/06/11 08:00 | Benito Sanchez Martinez v Peter Heller | 4-6,2-6 |
| DTB German Pro Series | 2020/06/10 12:20 | Jan-Lennard Struff v Peter Heller | 6-3,6-4 |
| DTB German Pro Series | 2020/06/09 08:00 | Mats Rosenkranz v Peter Heller | 6-1,6-0 |
| ITF M15 Antalya | 2020/03/12 07:30 | Tristan Boyer v Peter Heller | 1-6,1-6 |
| ITF M15 Antalya | 2020/03/11 10:05 | Imanol L Morillo v Peter Heller | 5-7,3-6 |
| DTB German Pro Series | 2020/06/24 10:00 | Niklas Guttau v Philip Florig | 6-7,6-2,6-1 |
| DTB German Pro Series | 2020/06/23 08:00 | Matthias Bachinger v Niklas Guttau | 6-3,6-1 |
| DTB German Pro Series | 2020/06/14 08:30 | Adrian Oetzbach v Niklas Guttau | 6-3,2-6,6-2 |
| DTB German Pro Series | 2020/06/13 11:55 | Niklas Guttau v Lucas Gerch | 4-6,3-6 |
| DTB German Pro Series | 2020/06/12 10:10 | Daniel Altmaier v Niklas Guttau | 6-3,4-6,6-3 |
| DTB German Pro Series | 2020/06/11 16:25 | Maximilian Marterer v Niklas Guttau | 6-1,6-3 |
| ITF M15 Monastir | 2020/03/10 08:30 | Vladimir Korolev v Niklas Guttau | 6-2,6-1 |
| ITF M15 Oberhaching | 2020/02/16 15:00 | Niklas Guttau v Emilien Voisin | 6-4,6-7,6-10 |