| Hungarian Int. Qual | 2022/11/02 14:25 | 카르발호, 브루노 v Niederhuber, Kai | W | 0-2 |
| Luxembourg Open Qual | 2023/05/04 10:30 | Ramnish Kumar v Niederhuber, Kai | W | 0-2 |
| Polish Open Qual | 2023/03/22 16:00 | 킥리츠, 마티아스 v Niederhuber, Kai | L | 2-0 |
| Polish Open Qual | 2023/03/22 08:00 | Daniel Dvorak v Niederhuber, Kai | W | 0-2 |
| Slovenia Future Series Qual | 2022/11/24 12:40 | Niederhuber, Kai v Paul Tournefier | L | 0-2 |
| Hungarian Int. | 2022/11/03 13:20 | Lin, C.-Y. v Niederhuber, Kai | L | 2-0 |
| Hungarian Int. Qual | 2022/11/03 08:35 | Sebastian Lassen Nielsen v Niederhuber, Kai | W | 0-2 |
| Hungarian Int. Qual | 2022/11/02 19:05 | Niederhuber, Kai v 콘드라티우크, 니콜라이 | W | 2-0 |
| Hungarian Int. Qual | 2022/11/02 14:25 | 카르발호, 브루노 v Niederhuber, Kai | W | 0-2 |
| Luxembourg Open Qual | 2023/05/04 10:30 | 카르발호, 브루노 v Schneidman, Idan | W | 2-0 |
| Dutch Int. Qual | 2023/04/13 14:40 | 카르발호, 브루노 v Daniel Zhou | W | 2-1 |
| Dutch Int. Qual | 2023/04/13 10:10 | 카르발호, 브루노 v Shao-Hsuan Chen | W | 2-1 |
| Portugal Int. Qual | 2023/03/08 11:30 | 카르발호, 브루노 v Kim Kristensen, D. | L | 0-2 |
| Norwegian Int. | 2022/11/11 10:00 | 카르발호, 브루노 v Christopher Vittoriani | L | 0-2 |
| Norwegian Int. Qual | 2022/11/10 15:00 | 카르발호, 브루노 v Oleksii Titov | W | 2-0 |
| Hungarian Int. Qual | 2022/11/02 14:25 | 카르발호, 브루노 v Niederhuber, Kai | L | 0-2 |
| Hungarian Int. Qual | 2022/11/02 09:10 | Joseph Waugh v 카르발호, 브루노 | W | 0-2 |