| Indonesia Masters XD | 05/22 12:30 | 1 | Kersaudy/Maio v Chau/Serasinghe | L | 2-0 | |
| Indonesia Masters XD | 05/21 12:30 | 1 | M.R/Shlok v Chau/Serasinghe | L | 2-0 | |
| Indonesia Masters XD | 05/20 12:30 | 1 | Liu/Zhang v Chau/Serasinghe | L | 2-0 | |
| Swiss Open WD Qual | 01/16 02:39 | - | Chau/Serasinghe v Lee/Yang | L | 0-2 | |
| Giraldilla Int. XD | 01/11 13:40 | 4 | Ong/Teo v Chau/Serasinghe | L | 2-0 | |
| Giraldilla Int. XD | 01/10 06:20 | 5 | Ho/Tam v Chau/Serasinghe | W | 1-2 | |
| Indonesia Masters XD | 08/03 08:40 | - | Chau/Serasinghe v Hsu/Lu | L | 1-2 | |
| Indonesia Masters XD | 08/03 08:40 | 4 | Chau/Serasinghe v Hao Hsu/Lu | L | 1-2 | |
| Indonesia Masters XD | 08/02 05:30 | 5 | Chau/Serasinghe v Curtin/Oud | W | 2-0 | |
| Indonesia Masters XD | 07/19 22:35 | 5 | Dunn/Hall v Chau/Serasinghe | L | 2-1 | |
| Indonesia Masters XD | 07/13 01:00 | 5 | Chau/Serasinghe v Kim/Seo | L | 0-2 | |
| Australian Open MD | 06/21 08:55 | 5 | Chau/Serasinghe v Ling Chen/Wang | L | 0-2 | |
| Indonesia Masters XD | 05/26 09:30 | 1 | Ho-Shue/Yakura v Chau/Serasinghe | W | 1-2 | |
| Indonesia Masters XD | 05/25 03:20 | - | Chrisnanta/Hee v Chau/Serasinghe | L | 2-0 | |
| Indonesia Masters XD | 05/23 09:25 | - | Chau/Serasinghe v Stipsits/Zirnwald | W | 2-0 | |
| Indonesia Masters XD | 05/22 03:19 | - | Chau/Serasinghe v Emerick/Yang | W | 2-0 | |
| All England Open | 04/12 07:45 | 5 | Law/Lee v Chau/Serasinghe | L | 2-1 | |
| Olympics 2020 - MD | 08/13 11:00 | 3 | Tsai/Lee v Chau/Serasinghe | L | 2-0 | |
| Olympics 2020 - MD | 08/12 20:25 | 2 | Ivanov/Sozonov v Chau/Serasinghe | L | 2-0 | |
| Olympics 2020 - MD | 08/11 11:25 | 1 | Lee/Yoo v Chau/Serasinghe | L | 2-0 |