| Sudirman Cup | 2019/05/24 10:30 | Nhat Nguyen v Karunaratna, D. | L | 2-0 |
| Sudirman Cup | 2019/05/22 10:00 | Kirchmayr, Christian v Karunaratna, D. | W | 0-2 |
| Sudirman Cup | 2019/05/21 11:00 | Karunaratna, D. v Sames, Mark | W | 2-0 |
| Sudirman Cup | 2019/05/20 04:00 | Karunaratna, D. v Milan Dratva | W | 2-0 |
| Tong Yun Kai Cup | 2019/03/20 11:30 | Kantaphon Wangcharoen v Karunaratna, D. | L | 2-0 |
| Tong Yun Kai Cup | 2019/03/19 11:30 | Mustofa, Ihsan Maulana v Karunaratna, D. | L | 2-0 |
| Dutch Open | 2018/10/10 12:35 | Karunaratna, D. v Parupalli, Kashyap | L | 1-2 |
| Dutch Open | 2018/10/09 16:40 | Karunaratna, D. v Karan Rajan Rajarajan | W | 2-1 |
| Spain Int Qual | 2021/06/16 07:20 | Camilo Borst v Richard Kuhl | L | 0-2 |
| Open de Pologne - Qualif. | 2021/03/25 09:00 | Karl Kert v Camilo Borst | L | 2-0 |
| Portuguese Int. | 2020/11/06 10:10 | Milan Dratva v Camilo Borst | L | 2-0 |
| Bulgarian Int. | 2020/10/02 16:15 | Ivancic, Miha v Camilo Borst | L | 2-0 |
| Open de Suède - Qualif. | 2020/01/16 11:30 | Camilo Borst v Maynard, Mitchell | L | 1-2 |
| Peru Int. | 2019/06/20 16:00 | Hernandez, Arturo v Camilo Borst | L | 2-0 |