| Dutch Open | 10/09 16:35 | 5 | Hong Yang Weng v Nikolov, Daniel | L | 1-2 | |
| Indonesia Masters | 10/01 12:10 | 6 | Saputra, Vicky Angga v Hong Yang Weng | L | 2-1 | |
| Vietnam Open | 09/12 02:00 | 5 | Sun, F. v Hong Yang Weng | L | 2-1 | |
| Vietnam Open | 09/11 03:10 | 6 | Saran Jamsri v Hong Yang Weng | W | 0-2 | |
| Belarus Int. | 09/01 06:30 | - | Lan Xi Lei v Hong Yang Weng | L | 2-0 | |
| Belarus Int. | 08/31 15:00 | - | Liu, H. C. v Hong Yang Weng | W | 0-2 | |
| Belarus Int. | 08/31 11:00 | - | Hong Yang Weng v Shi Feng Li | W | 2-0 | |
| US Open 2019, MS, Qualification | 07/09 22:30 | - | Shi Feng Li v Hong Yang Weng | L | 2-1 | |
| US Open 2019, MS, Qualification | 07/09 19:45 | - | Weng, H. Y. v Emre Lale | W | 2-0 | |
| Canada Open | 07/04 21:00 | 4 | Weng, H. Y. v Ouseph, Rajiv | L | 0-2 | |
| Canada Open | 07/03 22:30 | 5 | Lakshya Sen v Weng, H. Y. | W | 0-2 | |
| Osaka Int. | 04/04 06:40 | - | Weng, H. Y. v Koki Watanabe | L | 0-2 | |
| Osaka Int. | 04/04 00:40 | - | Weng, H. Y. v Gao, Zhengze | W | 2-0 | |
| China Masters | 03/17 06:00 | 1 | Liu, H. C. v Weng, H. Y. | W | 0-2 | |
| China Masters | 03/16 12:30 | 2 | Lakshya Sen v Weng, H. Y. | W | 1-2 | |
| China Masters | 03/15 11:40 | 3 | Kim, Donghun (1993) v Weng, H. Y. | W | 1-2 | |
| China Masters | 03/14 11:25 | 4 | Weng, H. Y. v Chia Hao Lee | W | 2-0 | |
| China Masters | 03/13 12:00 | 5 | June Wei Cheam v Weng, H. Y. | W | 1-2 | |
| Giraldilla Int. XD | 02/22 10:30 | - | Weng, H. Y. v Burestedt, Felix | W | 2-1 | |
| Giraldilla Int. XD | 11/22 14:00 | 5 | Weng, H. Y. v Corvee, Lucas | L | 1-2 | |
| Giraldilla Int. XD | 11/21 20:00 | 6 | Torjussen, J. v Weng, H. Y. | W | 0-2 | |
| Open de Suisse - Doubles Femmes - Qualif. | 11/21 13:17 | - | Weng, H. Y. v Grimley, Christopher | W | 2-0 | |
| Open de Suisse - Doubles Femmes - Qualif. | 11/21 11:20 | - | Heng Lin Ngan v Weng, H. Y. | W | 0-2 | |
| China Masters | 04/12 06:00 | 4 | Zulkarnain, I. v Weng, H. Y. | L | 2-0 | |
| China Masters | 04/11 10:40 | 5 | Weng, H. Y. v Cao, Yufeng | W | 2-0 | |
| China Masters | 04/18 04:45 | 6 | Weng, H. Y. v Shimono, Hashiru | L | 1-2 |