| Dutch International - Kval | 2019/04/11 18:00 | Sebastian Bugtrup v Christopher Klauer | L | 2-0 |
| Swiss Open - Damdubbel - Kval | 2019/03/07 10:10 | Christopher Klauer v Gergo Pytel | L | 0-2 |
| Swiss Open - Damdubbel - Kval | 2019/01/10 09:00 | Valentin Singer v Christopher Klauer | L | 2-0 |