| Sudirman Cup | 2019/05/22 04:00 | Nhat Nguyen v Jacob Schueler | W | 2-0 |
| Sudirman Cup | 2019/05/19 03:30 | Nhat Nguyen v Ratnajit Tamang | W | 2-0 |
| Denmark Int. | 2019/05/10 10:00 | Nhat Nguyen v Milan Ludik | W | 2-0 |
| Polish Open | 2019/03/29 09:00 | Adrian Dziolko v Nhat Nguyen | W | 0-2 |
| Orleans Masters | 2019/03/22 16:30 | Nhat Nguyen v Mark Caljouw | L | 0-2 |
| Orleans Masters | 2019/03/21 16:50 | Nhat Nguyen v Toma Junior Popov | W | 2-1 |
| Orleans Masters | 2019/03/20 09:20 | Nhat Nguyen v Alexander Roovers | W | 2-0 |
| Orleans Masters | 2019/03/19 18:00 | Kim Bruun v Nhat Nguyen | W | 0-2 |
| Sudirman Cup | 2019/05/22 10:00 | Christian Kirchmayr v Dinuka Karunaratna | W | 0-2 |
| Sudirman Cup | 2019/05/21 11:00 | Dinuka Karunaratna v Mark Sames | W | 2-0 |
| Sudirman Cup | 2019/05/20 04:00 | Dinuka Karunaratna v Milan Dratva | W | 2-0 |
| Tong Yun Kai Cup | 2019/03/20 11:30 | Kantaphon Wangcharoen v Dinuka Karunaratna | L | 2-0 |
| Tong Yun Kai Cup | 2019/03/19 11:30 | Ihsan Maulana Mustofa v Dinuka Karunaratna | L | 2-0 |
| Dutch Open | 2018/10/10 12:35 | Dinuka Karunaratna v Parupalli Kashyap | L | 1-2 |
| Dutch Open | 2018/10/09 16:40 | Dinuka Karunaratna v Karan Rajan Rajarajan | W | 2-1 |
| Swiss Open WD Qual | 2018/09/27 08:00 | Ade Resky Dwicahyo v Dinuka Karunaratna | L | 2-0 |