| Challenger Series TT | 07/02 10:05 | 50 | Johannes Willeke v Matias Danzer | L | 0-3 | |
| Challenger Series TT | 07/02 08:45 | 2 | Sven Happek v Johannes Willeke | L | 3-2 | |
| Challenger Series TT | 07/02 08:30 | - | Johannes Willeke v Francesco Maragioglio | - | Cancelled | |
| Challenger Series TT | 07/02 06:30 | - | Johannes Willeke v Armin Alicic | L | 2-3 | |
| Challenger Series TT | 07/01 16:00 | - | Johannes Willeke v Mykhailo Mosiuk | W | 3-2 | |
| Challenger Series TT | 07/01 12:30 | - | Johannes Willeke v Sven Happek | L | 1-3 | |
| Challenger Series TT | 07/01 11:00 | - | Johannes Willeke v Minsu Kim | L | 0-3 | |
| Challenger Series TT | 07/01 08:30 | - | Woobeen Jeong v Johannes Willeke | W | 1-3 | |
| Challenger Series TT | 07/01 07:00 | - | Johannes Willeke v Matias Danzer | W | 3-1 | |
| Challenger Series TT | 11/28 09:30 | - | Kirill Fadeev v Johannes Willeke | L | 3-1 | |
| Challenger Series TT | 11/28 08:10 | - | Johannes Willeke v Armin Alicic | L | 1-3 | |
| Challenger Series TT | 11/27 20:10 | - | Marco Stefanidis v Johannes Willeke | - | Cancelled | |
| Challenger Series TT | 11/27 16:50 | - | Aljaz Godec v Johannes Willeke | L | 3-0 | |
| Challenger Series TT | 11/27 14:50 | - | Johannes Willeke v Liang Qiu | L | 2-3 | |
| Challenger Series TT | 11/27 11:30 | - | Johannes Willeke v Damian Zech | W | 3-2 | |
| Challenger Series TT | 11/27 09:30 | - | Johannes Willeke v Michael Fuchs | L | 0-3 | |
| Challenger Series TT | 10/31 10:10 | - |
Johannes Willeke v
Simon Berglund
|
L | 0-3 | |
| Challenger Series TT | 10/30 20:50 | - | Johannes Willeke v Daniel Rinderer | L | 0-3 | |
| Challenger Series TT | 10/30 18:10 | - | Johannes Willeke v Samuel Amann | W | 3-1 | |
| Challenger Series TT | 10/30 15:30 | - | Mike Hollo v Johannes Willeke | L | 3-1 | |
| Challenger Series TT | 10/30 12:50 | - | Kirill Fadeev v Johannes Willeke | L | 3-1 | |
| Challenger Series TT | 10/30 10:50 | - |
Johannes Willeke v
Alexander Valuch
|
L | 2-3 | |
| Challenger Series TT | 10/30 08:50 | - |
Johannes Willeke v
Martin Buch Andersen
|
L | 2-3 | |
| Challenger Series TT | 07/14 10:30 | - | Benjamin Fruchart v Johannes Willeke | L | 3-0 | |
| Challenger Series TT | 07/14 06:30 | - | Michael Engelhardt v Johannes Willeke | L | 3-1 | |
| Challenger Series TT | 07/13 18:30 | - | Johannes Willeke v Antonin Gavlas | L | 0-3 | |
| Challenger Series TT | 07/13 15:10 | - | Johannes Willeke v Kirill Fadeev | L | 0-3 | |
| Challenger Series TT | 07/13 13:10 | - | Makoto Nogami v Johannes Willeke | W | 1-3 | |
| Challenger Series TT | 07/13 10:30 | - | Tobias Slanina v Johannes Willeke | L | 3-1 | |
| Challenger Series TT | 07/13 07:50 | - | Dauud Cheaib v Johannes Willeke | L | 3-1 |