| Sudirman Cup | 2019/05/22 04:00 | Nhat Nguyen v Schueler, Jacob | W | 2-0 |
| Sudirman Cup | 2019/05/19 03:30 | Nhat Nguyen v Tamang, Ratnajit | W | 2-0 |
| Denmark Int. | 2019/05/10 10:00 | Nhat Nguyen v Ludik, Milan | W | 2-0 |
| Open de Pologne | 2019/03/29 09:00 | Adrian Dziolko v Nhat Nguyen | W | 0-2 |
| Orléans Masters | 2019/03/22 16:30 | Nhat Nguyen v Mark Caljouw | L | 0-2 |
| Orléans Masters | 2019/03/21 16:50 | Nhat Nguyen v Toma Junior Popov | W | 2-1 |
| Orléans Masters | 2019/03/20 09:20 | Nhat Nguyen v Roovers, Alexander | W | 2-0 |
| Orléans Masters | 2019/03/19 18:00 | Kim Bruun v Nhat Nguyen | W | 0-2 |
| 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 |
| Open de Suisse - Doubles Femmes - Qualif. | 2018/09/27 08:00 | Ade Resky Dwicahyo v Karunaratna, D. | L | 2-0 |