| Giraldilla Int. XD | 2018/05/12 03:20 | Cai, Y. Y. v Cheung, Ngan Yi | W | 2-0 |
| Macau Open 2019, WS | 2017/11/11 08:00 | Cai, Y. Y. v Cheung, Ngan Yi | W | 2-0 |
| Japan Open Women | 2019/07/23 05:20 | Bingjiao He v Cai, Y. Y. | L | 2-0 |
| Indonesia Open Women | 2019/07/17 05:30 | Cheah, Soniia v Cai, Y. Y. | L | 2-0 |
| Asia Championships Women | 2019/04/27 07:00 | Cai, Y. Y. v Bingjiao He | L | 1-2 |
| Asia Championships Women | 2019/04/26 10:00 | Cai, Y. Y. v Pusarla V. Sindhu | W | 2-0 |
| Asia Championships Women | 2019/04/25 03:30 | Yip, Pui Yin v Cai, Y. Y. | W | 0-2 |
| Asia Championships Women | 2019/04/24 06:40 | Cai, Y. Y. v Sung, Ji Hyun | W | 2-1 |
| Singapore Open Women | 2019/04/12 05:40 | Cai, Y. Y. v Pusarla V. Sindhu | L | 1-2 |
| Singapore Open Women | 2019/04/11 05:00 | Cai, Y. Y. v Li, Xuerui | W | 2-0 |
| Japan Open Women | 2019/07/23 01:10 | Michelle Li v Cheung, Ngan Yi | L | 2-0 |
| Indonesia Open Women | 2019/07/18 02:05 | Akane Yamaguchi v Cheung, Ngan Yi | L | 2-0 |
| Indonesia Open Women | 2019/07/16 07:40 | Kjaersfeldt, L. H. v Cheung, Ngan Yi | W | 1-2 |
| Australian Open Women | 2019/06/06 03:00 | Sung, Ji Hyun v Cheung, Ngan Yi | L | 2-1 |
| Australian Open Women | 2019/06/05 05:40 | Cheung, Ngan Yi v Yulia Y Susanto | W | 2-0 |
| Sudirman Cup Women | 2019/05/20 10:30 | Se Young An v Cheung, Ngan Yi | L | 2-0 |
| Sudirman Cup Women | 2019/05/19 10:30 | Tzu Ying Tai v Cheung, Ngan Yi | L | 2-1 |
| Asia Championships Women | 2019/04/25 02:00 | Aya Ohori v Cheung, Ngan Yi | L | 2-1 |