| Asienmeisterschaft | 04/11 09:50 | 4 | Kunlavut Vitidsarn v Hai Dang Nguyen | L | 2-0 | |
| Asienmeisterschaft | 04/10 03:30 | 5 | Viren Nettasinghe v Hai Dang Nguyen | W | 0-2 | |
| China Masters | 03/20 09:10 | 5 | Hai Dang Nguyen v Liang Liu | L | 0-2 | |
| Azerbaijan International | 02/09 11:00 | - | Hyeok Jin Jeon v Hai Dang Nguyen | L | 2-0 | |
| Kaohsiung Masters | 09/27 13:10 | 5 | Hai Dang Nguyen v Cheng-Han Tsai | L | 0-2 | |
| Kaohsiung Masters | 09/26 10:20 | 6 | Jacob Schueler v Hai Dang Nguyen | W | 0-2 | |
| Vietnam Open | 09/12 13:30 | 6 | Hai Dang Nguyen v Kuan Lin Kuo | L | 1-2 | |
| Weltmeisterschaft | 08/21 13:30 | 6 | Hai Dang Nguyen v Christo Popov | L | 1-2 | |
| Südostasienspiele | 05/09 03:00 | - | Hai Dang Nguyen v Jun Hao Leong | L | 0-2 | |
| Asienmeisterschaft | 04/26 13:15 | 5 | Tien Chen Chou v Hai Dang Nguyen | L | 2-0 | |
| Dutch International | 04/14 10:00 | - | Johnnie Torjussen v Hai Dang Nguyen | L | 2-1 | |
| Thailand International | 03/08 12:50 | - | Hai Dang Nguyen v Minoru Koga | L | 0-2 | |
| Vietnam Open | 09/29 09:50 | 4 | Hai Dang Nguyen v Hong Yang Weng | L | 0-2 | |
| Vietnam Open | 09/28 07:25 | 5 | Korakrit Laotrakul v Hai Dang Nguyen | W | 0-2 | |
| Lettland - Latvia International | 09/04 07:10 | - | Cheng-Han Tsai v Hai Dang Nguyen | L | 2-0 | |
| Lettland - Latvia International | 09/03 15:00 | - | Ming Hong Lim v Hai Dang Nguyen | W | 1-2 | |
| Lettland - Latvia International | 09/03 07:40 | - | Hai Dang Nguyen v Jonathan Dolan | W | 2-0 | |
| Lettland - Latvia International | 09/02 16:20 | - | Saketh Upadhya v Hai Dang Nguyen | W | 0-2 | |
| Nouvelle-Aquitaine Int. | 08/26 09:55 | - | Hai Dang Nguyen v Ming Hong Lim | L | 1-2 | |
| Nouvelle-Aquitaine Int. | 08/26 07:35 | - | Hai Dang Nguyen v Jakob Godt | W | 2-0 | |
| Croatia Open | 06/23 11:20 | - | Hai Dang Nguyen v Justin Hoh | L | 1-2 | |
| Croatia Open | 06/23 07:30 | - | Cholan Kayan v Hai Dang Nguyen | W | 0-2 | |
| Croatia Open | 06/22 13:00 | - | Hai Dang Nguyen v Ming Hong Lim | W | 2-1 | |
| Croatia Open | 06/22 08:10 | - | Aaron Sonnenschein v Hai Dang Nguyen | W | 0-2 | |
| Croatia Open | 06/21 14:20 | - | Miha Ivancic v Hai Dang Nguyen | W | 0-2 | |
| Bonn Int. - Qualifikation | 06/15 09:40 | - | Sai Charan Koya v Hai Dang Nguyen | L | 2-0 | |
| Lithuanian International | 06/11 14:40 | - | Syabda Perkasa Belawa v Hai Dang Nguyen | L | 2-1 | |
| Lithuanian International | 06/11 09:20 | - | Hai Dang Nguyen v Shao Herng Hooi | W | 2-0 | |
| Lithuanian International | 06/10 09:45 | - | Hai Dang Nguyen v Ragnar Sepp | W | 2-0 | |
| Vietnam Open | 09/12 03:20 | 5 | Hai Dang Nguyen v Hsuan Yi Hsueh | L | 0-2 |