| Polish Int. | 2023/09/21 10:00 | Kai Niederhuber v Aaron Sonnenschein | L | 1-2 |
| Polish Int. - Kval | 2023/09/21 07:40 | Kai Niederhuber v Maksymilian Krogulski | W | 2-0 |
| Slovenia - Future Series | 2023/09/08 08:45 | Jeppe Bruun Christensen v Kai Niederhuber | L | 2-1 |
| Bonn Int. - Kval | 2023/05/31 09:10 | Kai Niederhuber v David K Kristensen | L | 0-2 |
| Austrian Open - Kval | 2023/05/25 09:55 | Kai Niederhuber v Jia Jie Tan | L | 0-2 |
| Slovenia Open - Kval | 2023/05/17 16:45 | Kai Niederhuber v Yaro Van Delsen | L | 1-2 |
| Slovenia Open - Kval | 2023/05/17 09:10 | Kai Niederhuber v Adarsh Palani Kumar | W | 2-0 |
| Luxembourg Open - Kval | 2023/05/04 12:50 | Kai Niederhuber v Bruno Carvalho | L | 0-2 |
| Slovenia - Future Series - Kval | 2023/09/07 12:40 | Patrick Zbinden v Arun Kumar Ashok Kumar | L | 2-0 |
| Slovenia - Future Series - Kval | 2023/09/07 08:00 | Andre Irpola v Arun Kumar Ashok Kumar | W | 0-2 |
| Latvia Int. Qual | 2023/08/31 08:30 | Ananda Daniswara v Arun Kumar Ashok Kumar | L | 2-0 |
| Swiss Open - Kvinnedouble - Kval | 2018/04/12 07:35 | Phone Pyae Naing v Arun Kumar Ashok Kumar | L | 2-1 |
| Swiss Open - Kvinnedouble - Kval | 2018/04/05 12:50 | Arun Kumar Ashok Kumar v Felix Burestedt | L | 0-2 |
| Swiss Open - Kvinnedouble - Kval | 2018/04/05 10:10 | Arun Kumar Ashok Kumar v Ilias Xanthou | W | 2-1 |
| Indonesia Masters - Mixed double | 2017/08/01 06:00 | Arun Kumar Ashok Kumar v Vicky Angga Saputra | L | 0-2 |
| Thailand Open | 2017/05/30 11:30 | Kantaphon Wangcharoen v Arun Kumar Ashok Kumar | L | 2-0 |