| Challenger Series TT | 06/13 08:00 | - | Dennis Klein v Johannes Willeke | L | 3-0 | |
| Challenger Series TT | 06/13 07:00 | - | Johannes Willeke v Oliver Both | L | 0-3 | |
| Challenger Series TT | 06/12 15:30 | - | Daniel Rinderer v Johannes Willeke | L | 3-0 | |
| Challenger Series TT | 06/12 13:30 | - | William Koehl v Johannes Willeke | L | 3-1 | |
| Challenger Series TT | 06/12 12:00 | - | Damian Zech v Johannes Willeke | W | 2-3 | |
| Challenger Series TT | 06/12 09:00 | - | Marius Henninger v Johannes Willeke | L | 3-0 | |
| Challenger Series TT | 06/12 07:00 | - | Enio Mendes v Johannes Willeke | L | 3-0 | |
| Challenger Series TT | 06/10 07:30 | - | Olav Kosolosky v Johannes Willeke | L | 3-0 | |
| Challenger Series TT | 06/10 07:00 | - | Johannes Willeke v Enio Mendes | L | 1-3 | |
| Challenger Series TT | 06/09 15:30 | - | Andrii Ostrovskyi v Johannes Willeke | W | 1-3 | |
| Challenger Series TT | 06/09 15:30 | - | Bennet Robben v Johannes Willeke | - | CANC | |
| Challenger Series TT | 06/09 13:30 | - | Pylyp Koloidenko v Johannes Willeke | W | 1-3 |