| Challenger Series TT | 2023/01/30 08:50 | Damian Zech v Nikola Grujic | L | 0-3 |
| Challenger Series TT | 2023/02/02 18:10 | Damian Zech v Kirill Fadeev | L | 2-3 |
| Challenger Series TT | 2023/02/02 15:30 | Kenan Hrnic v Damian Zech | W | 1-3 |
| Challenger Series TT | 2023/02/02 12:50 | Dennis Klein v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/02/02 10:50 | Damian Zech v Anton Limonov | L | 0-3 |
| Challenger Series TT | 2023/02/02 08:50 | Damian Zech v Dillon Chambers | L | 1-3 |
| Challenger Series TT | 2023/01/31 10:10 | Damian Zech v Albert Vilardell | L | 0-3 |
| Challenger Series TT | 2023/01/30 20:50 | Damian Zech v Josip Huzjak | L | 1-3 |
| Challenger Series TT | 2023/01/30 18:10 | Damian Zech v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2023/02/02 18:50 | Dennis Klein v Nikola Grujic | L | 3-0 |
| Challenger Series TT | 2023/02/02 16:50 | Nikola Grujic v Anton Limonov | L | 1-3 |
| Challenger Series TT | 2023/02/02 14:10 | Nikola Grujic v Dillon Chambers | L | 0-3 |
| Challenger Series TT | 2023/02/02 12:10 | Nikola Grujic v Kirill Fadeev | L | 1-3 |
| Challenger Series TT | 2023/02/02 09:30 | Hannes Hormann v Nikola Grujic | W | 2-3 |
| Challenger Series TT | 2023/01/31 11:30 | Makoto Nogami v Nikola Grujic | L | 3-2 |
| Challenger Series TT | 2023/01/31 07:30 | Florian Bluhm v Nikola Grujic | L | 3-0 |
| Challenger Series TT | 2023/01/30 19:30 | Nikola Grujic v Guilherme Teodoro | L | 1-3 |