Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/06/16 12:10 | Liang Qiu v Enio Mendes | W | 0-3 |
| Challenger Series TT | 2023/06/16 10:45 | Enio Mendes v Norbert Tauler | W | 3-2 |
| Challenger Series TT | 2023/06/16 08:30 | Yannick Vostes v Enio Mendes | L | 3-2 |
| Challenger Series TT | 2023/06/16 07:10 | Enio Mendes v Jose Guillot | W | 3-0 |
| Challenger Series TT | 2023/06/15 15:10 | Norbert Tauler v Enio Mendes | L | 3-2 |
| Challenger Series TT | 2023/06/15 13:10 | Enio Mendes v Liang Qiu | W | 3-2 |
| Challenger Series TT | 2023/06/15 10:30 | Enio Mendes v Dauud Cheaib | W | 3-2 |
| Challenger Series TT | 2023/06/15 08:30 | Enio Mendes v Zengyi Wang | W | 3-2 |
| Challenger Series TT | 2023/06/22 17:10 | Sven Happek v Johannes Willeke | W | 2-3 |
| Challenger Series TT | 2023/06/22 15:10 | Ihor Zavadskyi v Johannes Willeke | L | 3-1 |
| Challenger Series TT | 2023/06/22 12:30 | Dennis Klein v Johannes Willeke | L | 3-0 |
| Challenger Series TT | 2023/06/22 11:10 | Dauud Cheaib v Johannes Willeke | L | 3-0 |
| Challenger Series TT | 2023/06/22 06:30 | Tobias Slanina v Johannes Willeke | L | 3-2 |
| Challenger Series TT | 2023/06/20 08:30 | Jose Guillot v Johannes Willeke | L | 3-1 |
| Challenger Series TT | 2023/06/20 07:10 | Aljaz Godec v Johannes Willeke | L | 3-0 |
| Challenger Series TT | 2023/06/19 17:10 | Marco Stefanidis v Johannes Willeke | L | 3-0 |