Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/07/13 15:10 | Johannes Willeke v Kirill Fadeev | W | 0-3 |
| Challenger Series TT | 2023/10/30 10:10 | Kirill Fadeev v Mike Hollo | W | 3-1 |
| Challenger Series TT | 2023/10/30 07:30 | Kirill Fadeev v Samuel Amann | W | 3-1 |
| Challenger Series TT | 2023/10/17 12:10 | Kirill Fadeev v Dauud Cheaib | W | 3-1 |
| Challenger Series TT | 2023/10/17 10:45 | Simon Berglund v Kirill Fadeev | L | 3-1 |
| Challenger Series TT | 2023/10/17 07:50 | Simon Berglund v Kirill Fadeev | L | 3-1 |
| Challenger Series TT | 2023/10/17 07:10 | Carlos Caballero v Kirill Fadeev | W | 0-3 |
| Challenger Series TT | 2023/10/16 17:10 | Akito Itagaki v Kirill Fadeev | W | 0-3 |
| Challenger Series TT | 2023/10/16 15:10 | Jong-Eon Yeon v Kirill Fadeev | W | 0-3 |
| 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 | 2023/07/14 10:30 | Benjamin Fruchart v Johannes Willeke | L | 3-0 |
| Challenger Series TT | 2023/07/14 06:30 | Michael Engelhardt v Johannes Willeke | L | 3-1 |
| Challenger Series TT | 2023/07/13 18:30 | Johannes Willeke v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/07/13 15:10 | Johannes Willeke v Kirill Fadeev | L | 0-3 |
| Challenger Series TT | 2023/07/13 13:10 | Makoto Nogami v Johannes Willeke | W | 1-3 |
| Challenger Series TT | 2023/07/13 10:30 | Tobias Slanina v Johannes Willeke | L | 3-1 |