Stadium: Center Court Round: 24 Ground: Clay
| Challenger Braunschweig | 2019/07/07 08:00 | Guillermo Duran v Niklas Guttau | 6-7,6-7 |
| ITF M15 Saarlouis | 2019/07/04 11:45 | Niklas Guttau v Dominik Boehler | 4-6,5-7 |
| ITF M15 Saarlouis | 2019/07/02 10:00 | Alexander Erler v Niklas Guttau | 4-6,6-4,5-7 |
| ITF M15 Kaltenkirchen | 2019/06/12 10:30 | Markus Eriksson v Niklas Guttau | 6-3,6-1 |
| ITF M15 Kaltenkirchen | 2019/06/11 18:25 | Niklas Guttau v Rinky Hijikata | 6-3,6-1 |
| ITF M15 Antalya | 2019/05/25 07:45 | Niklas Guttau v Christopher Heyman | 5-7,2-6 |
| ITF M15 Antalya | 2019/05/23 09:05 | Niklas Guttau v Adrian Obert | 4-6,6-4,7-6 |
| ITF M15 Antalya | 2019/05/22 11:30 | Paul Woerner v Niklas Guttau | 1-6,2-6 |
| Challenger Ludwigshafen | 2019/07/01 15:00 | Lucas Miedler v Tobias Kamke | 6-4,6-4 |
| Challenger Nottingham | 2019/06/12 16:50 | Antoine Hoang v Tobias Kamke | 5-7,6-4,6-2 |
| Challenger Nottingham | 2019/06/11 13:00 | Liam Broady v Tobias Kamke | 4-6,5-7 |
| Challenger Surbiton | 2019/06/03 17:25 | Ramkumar Ramanathan v Tobias Kamke | 6-3,3-6,6-1 |
| Challenger Murcia | 2019/04/08 11:30 | Federico Gaio v Tobias Kamke | 6-1,6-4 |
| Challenger Lille | 2019/03/22 17:10 | Tobias Kamke v Quentin Halys | 6-7,2-6 |
| Challenger Lille | 2019/03/21 15:00 | Tobias Kamke v Johan Sebastien Tatlot | 6-2,6-4 |
| Challenger Pau | 2019/02/28 15:30 | Quentin Halys v Tobias Kamke | 7-6,7-6 |