| Hatzor Int | 2019/10/24 10:00 | Klauer, Christopher v Peleg, Stav | W | 2-0 |
| Belgian Int. Qual | 2019/09/11 12:55 | Samuel Hsiao v Klauer, Christopher | L | 2-0 |
| Hellas Int. Qual | 2019/05/03 06:00 | Klauer, Christopher v Yazgan Calisir | W | 2-1 |
| Hellas Int. Qual | 2019/05/02 14:30 | Klauer, Christopher v Tsigirdakis, Stamatis | W | 2-1 |
| Hellas Int. Qual | 2019/05/02 11:30 | Klauer, Christopher v Yilmaz, Batuhan | W | 2-0 |
| Dutch Int. - Qualif. | 2019/04/11 18:00 | Bugtrup, Sebastian v Klauer, Christopher | L | 2-0 |
| Open de Suisse - Doubles Femmes - Qualif. | 2019/03/07 10:10 | Klauer, Christopher v Gergo Pytel | L | 0-2 |
| Open de Suisse - Doubles Femmes - Qualif. | 2019/01/10 09:00 | Valentin Singer v Klauer, Christopher | L | 2-0 |
| Hatzor Int | 2019/10/24 09:00 | Idan Schneidman v Sames, Mark | W | 0-2 |
| Belarus Int. Qual | 2019/08/29 08:00 | Sames, Mark v Primak, Vitaly | W | 2-0 |
| Lithuanian Int. Qual | 2019/06/07 06:30 | Sames, Mark v Rikheim, Vegard | L | 1-2 |
| Lithuanian Int. Qual | 2019/06/06 15:00 | Altunyan, Roman v Sames, Mark | W | 0-2 |
| Sudirman Cup | 2019/05/24 11:20 | Tamang, Ratnajit v Sames, Mark | L | 2-0 |
| Sudirman Cup | 2019/05/22 11:00 | Milan Dratva v Sames, Mark | L | 2-0 |
| Sudirman Cup | 2019/05/21 11:00 | Karunaratna, D. v Sames, Mark | L | 2-0 |
| Sudirman Cup | 2019/05/20 04:00 | Tobias Kuenzi v Sames, Mark | W | 1-2 |