| Indonesia Masters XD | 10/25 03:45 | 5 | Nabawi/Pasaribu v Chang C-Y / Wang C M | L | 2-1 | |
| Yozu Indonesia Masters 2019, XD, Qualification | 09/05 02:00 | 4 | Chang C-Y / Wang C M v Hung Y T / Lin Y C | L | 1-2 | |
| Open d'Allemagne - Doubles Hommes | 03/10 18:10 | 3 | Chang C-Y / Wang C M v Kang/Seo | L | 0-2 | |
| Open d'Allemagne - Doubles Hommes | 03/09 17:45 | 4 | Corvee/Labar v Chang C-Y / Wang C M | W | 0-2 | |
| Open d'Allemagne - Doubles Hommes | 03/08 17:40 | 5 | Chang C-Y / Wang C M v Liang/Wang | W | 2-0 | |
| Graphics Int. MD | 12/18 22:50 | - | Farias FA / Farias Fr v Chang C-Y / Wang C M | W | 1-2 | |
| Giraldilla Int. XD | 12/21 02:35 | 1 | Okamura H / Onodera M v Chang C-Y / Wang C M | L | 2-1 | |
| Giraldilla Int. XD | 12/19 23:25 | 1 | Su L Y / Yang Y v Chang C-Y / Wang C M | W | 0-2 | |
| Giraldilla Int. XD | 12/19 04:00 | 1 | Cohn M / Schoppe D v Chang C-Y / Wang C M | W | 0-2 |