Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/07/10 09:10 | Johannes Willeke v Damian Zech | L | 1-3 |
| Challenger Series TT | 2023/11/27 09:30 | Johannes Willeke v Michael Fuchs | L | 0-3 |
| Challenger Series TT | 2023/10/31 10:10 | Johannes Willeke v Simon Berglund | L | 0-3 |
| Challenger Series TT | 2023/10/30 20:50 | Johannes Willeke v Daniel Rinderer | L | 0-3 |
| Challenger Series TT | 2023/10/30 18:10 | Johannes Willeke v Samuel Amann | W | 3-1 |
| Challenger Series TT | 2023/10/30 15:30 | Mike Hollo v Johannes Willeke | L | 3-1 |
| Challenger Series TT | 2023/10/30 12:50 | Kirill Fadeev v Johannes Willeke | L | 3-1 |
| Challenger Series TT | 2023/10/30 10:50 | Johannes Willeke v Alexander Valuch | L | 2-3 |
| Challenger Series TT | 2023/10/30 08:50 | Johannes Willeke v Martin Andersen | L | 2-3 |
| Challenger Series TT | 2023/11/27 08:50 | Kirill Fadeev v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/10/24 09:50 | Damian Zech v Carlo Rossi | L | 0-3 |
| Challenger Series TT | 2023/10/24 07:50 | Damian Zech v Guilherme Teodoro | L | 1-3 |
| Challenger Series TT | 2023/10/23 18:30 | Damian Zech v Finn Luu | L | 1-3 |
| Challenger Series TT | 2023/10/23 14:30 | Damian Zech v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2023/10/23 12:30 | Damian Zech v Jeromy Loffler | L | 1-3 |
| Challenger Series TT | 2023/10/23 09:10 | Mike Hollo v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/10/23 07:10 | Damian Zech v Alexander Valuch | L | 0-3 |