| 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 |
| Challenger Series TT | 2023/01/30 16:10 | Nikola Grujic v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2023/01/30 14:10 | Josip Huzjak v Nikola Grujic | L | 3-1 |
| Challenger Series TT | 2023/01/30 11:30 | Albert Vilardell v Nikola Grujic | L | 3-0 |
| Challenger Series TT | 2023/02/02 11:30 | Hannes Hormann v Dillon Chambers | W | 1-3 |
| Challenger Series TT | 2023/02/02 08:50 | Damian Zech v Dillon Chambers | W | 1-3 |
| Challenger Series TT | 2023/01/13 10:10 | Josip Huzjak v Dillon Chambers | W | 2-3 |
| Challenger Series TT | 2023/01/13 08:10 | Dillon Chambers v Makoto Nogami | L | 1-3 |
| Challenger Series TT | 2023/01/12 20:10 | Sven Happek v Dillon Chambers | L | 3-2 |
| Challenger Series TT | 2023/01/12 17:30 | Damian Zech v Dillon Chambers | L | 3-0 |
| Challenger Series TT | 2023/01/12 14:50 | Dillon Chambers v Jean Rassouw | W | 3-2 |
| Challenger Series TT | 2023/01/12 11:30 | Dillon Chambers v Bohdan Sinkevych | L | 1-3 |