Estádio: Ochsenhausen, Germany
| Challenger Series TT | 2023/10/30 13:30 | Mike Hollo v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2023/10/30 10:10 | Kirill Fadeev v Mike Hollo | L | 3-1 |
| Challenger Series TT | 2023/10/30 08:10 | Mike Hollo v Alexander Valuch | W | 3-1 |
| Challenger Series TT | 2023/10/24 09:10 | Mike Hollo v Alexander Valuch | L | 2-3 |
| Challenger Series TT | 2023/10/24 06:30 | Mike Hollo v Carlo Rossi | L | 2-3 |
| Challenger Series TT | 2023/10/23 17:15 | Mike Hollo v Guilherme Teodoro | L | 1-3 |
| Challenger Series TT | 2023/10/23 16:30 | Mike Hollo v Finn Luu | L | 2-3 |
| Challenger Series TT | 2023/10/23 11:50 | Mike Hollo v Dauud Cheaib | W | 3-2 |
| 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 | 2023/07/14 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 |