| Syed Modi Int. MD | 11/28 06:40 | 4 | Ivanov V / Sozonov I v Chang / Lu | L | 2-0 | |
| Syed Modi Int. MD | 11/27 04:15 | 5 | Malik P / Prasad V G v Chang / Lu | W | 0-2 | |
| Korea Masters MD | 11/20 03:30 | 5 | Chang / Lu v Di / Wang | L | 0-2 | |
| Malaysia Int. MD | 11/13 00:30 | - | Boon X Y / Yap Q S v Chang / Lu | W | 0-2 | |
| Hong Kong Open 2019, MD, Qualification | 11/12 01:40 | - | Chang T C / Yeung M N v Chang / Lu | L | 2-0 | |
| Macau Open 2019, MD | 10/30 10:55 | 5 | Chang / Lu v Chang T C / Yeung M N | L | 0-2 | |
| Vietnam Open MD | 09/11 13:50 | 5 | Chang / Lu v Lamsfuss/Seidel | L | 1-2 | |
| Chinese Taipei Open 2019, MD | 09/04 11:30 | 5 | Chang / Lu v Chrisnanta D B / Loh K H | L | 0-2 | |
| Thailand Open 2019, MD, Qualification | 07/30 06:45 | - | Gutama S K / Putra F W v Chang / Lu | L | 2-1 | |
| US Open 2019, MD | 07/12 00:15 | 4 | Lee/Yang v Chang / Lu | L | 2-0 | |
| US Open 2019, MD | 07/10 17:40 | 5 | Chang / Lu v Lamsfuss/Seidel | W | 2-1 | |
| Giraldilla Int. XD | 11/28 10:20 | 5 | Chang / Lu v Jang S H / Kim D J | L | 0-2 |