| Cyprus Int. Qual | 2021/10/14 12:35 | Callum Smith v Ivan Kovacevic | L | 2-0 |
| Bulgarian Int Qual | 2021/10/07 07:30 | Ivan Kovacevic v Borko Petrovic | L | 0-2 |
| Slovenia Int. | 2021/05/20 12:40 | Jonathan Matias v Ivan Kovacevic | L | 2-1 |
| Slovenia Int. Qual | 2021/05/19 15:45 | Ivan Kovacevic v Schwarz, Jonas | W | 2-0 |
| Bulgarian Int. | 2020/10/02 08:00 | Ivan Kovacevic v Stoynov, Ilyan | L | 0-2 |
| Bulgarian Int | 2021/10/08 14:10 | Emre Lale v Karunaratna, D. | L | 2-0 |
| Bulgarian Int | 2021/10/08 07:45 | Karunaratna, D. v Camilo Borst | W | 2-0 |
| 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 |