| Spain Int Qual | 2021/06/16 07:20 | Ramnish Kumar v Carlos Piris | L | 0-2 |
| Lithuanian Int. Qual | 2021/06/10 12:40 | Tadeas Brazda v Ramnish Kumar | L | 2-1 |
| Lithuanian Int. Qual | 2021/06/10 10:00 | Ramnish Kumar v Ignas Reznikas | W | 2-0 |
| Slovenia Int. Qual | 2021/05/19 11:40 | Kilian Ming-Zhe Maurer v Ramnish Kumar | L | 2-0 |
| Slovenia Int. Qual | 2021/05/19 11:00 | Christian Tomic v Ramnish Kumar | W | 1-2 |
| Portuguese Int. Qual | 2021/05/06 08:40 | Ramnish Kumar v Richard Kuhl | L | 0-2 |
| Polish Open Qual | 2023/03/22 16:00 | Matthias Kicklitz v Kai Niederhuber | L | 2-0 |
| Polish Open Qual | 2023/03/22 08:00 | Daniel Dvorak v Kai Niederhuber | W | 0-2 |
| Slovenia Future Series Qual | 2022/11/24 12:40 | Kai Niederhuber v Paul Tournefier | L | 0-2 |
| Hungarian Int. | 2022/11/03 13:20 | Chun-Yi Lin v Kai Niederhuber | L | 2-0 |
| Hungarian Int. Qual | 2022/11/03 08:35 | Sebastian Lassen Nielsen v Kai Niederhuber | W | 0-2 |
| Hungarian Int. Qual | 2022/11/02 19:05 | Kai Niederhuber v Nicolai Condratiuc | W | 2-0 |
| Hungarian Int. Qual | 2022/11/02 14:25 | Bruno Carvalho v Kai Niederhuber | W | 0-2 |
| Czech Open Qual | 2022/10/20 17:30 | Kai Niederhuber v David K Kristensen | L | 0-2 |