Stadium: Center Court Round: 28 Ground: Clay
| ITF Germany F9 | 2018/07/25 16:00 | Dominik Boehler v Constantin Schmitz | 6-1,6-3 |
| ITF M15 Trier | 2019/08/15 12:00 | Marlon Vankan v Dominik Boehler | 1-6,5-7 |
| ITF M15 Trier | 2019/08/14 11:10 | Alejo Vilaro v Dominik Boehler | 3-6,4-6 |
| ITF M15 Trier | 2019/08/13 16:20 | Joel Vincent Link v Dominik Boehler | 2-6,4-6 |
| ITF M25 Vogau | 2019/08/08 12:20 | Dominik Boehler v Camilo Ugo Carabelli | 2-6,2-6 |
| ITF M25 Vogau | 2019/08/07 09:35 | Aoran Wang v Dominik Boehler | 4-6,4-6 |
| ITF M15 Brussels | 2019/08/02 13:15 | Christopher Heyman v Dominik Boehler | 7-6,6-4 |
| ITF M15 Brussels | 2019/08/01 08:00 | Maciej Smola v Dominik Boehler | 1-6,1-6 |
| ITF M15 Brussels | 2019/07/31 12:00 | Alexis Boureau v Dominik Boehler | 6-7,6-2,2-6 |
| ITF M15 Trier | 2019/08/15 12:00 | Constantin Schmitz v Niklas Schell | 6-3,6-4 |
| ITF M15 Trier | 2019/08/14 10:00 | Constantin Schmitz v Hasan Ibrahim | 6-3,6-2 |
| ITF M15 Trier | 2019/08/13 11:05 | Constantin Schmitz v Tim Handel | 6-1,6-2 |
| ITF M15 Wetzlar | 2019/08/07 14:00 | Paul Cayre v Constantin Schmitz | 6-1,6-4 |
| ITF M15 Wetzlar | 2019/08/06 08:00 | Maikel Borg v Constantin Schmitz | 1-6,1-6 |
| ITF M15 Bad Schussenried | 2019/07/23 08:30 | Henri Squire v Constantin Schmitz | 7-5,6-3 |
| ITF M25 Karlsruhe | 2019/06/03 09:00 | Adrian Oetzbach v Constantin Schmitz | 6-4,7-5 |
| ITF M15 Tabarka | 2019/05/17 09:00 | Mohamed Aziz Dougaz v Constantin Schmitz | 7-6,6-1 |