| Asia Championships Women | 2019/04/25 03:30 | Yip, Pui Yin v Cai, Y. Y. | W | 0-2 |
| Macau Open 2019, WS | 2019/10/30 04:50 | Cai, Y. Y. v Rao Chukka, Sai Uttejitha | W | 2-0 |
| Open de France - Femmes | 2019/10/22 13:50 | Carolina Marin v Cai, Y. Y. | L | 2-1 |
| Denmark Open Women | 2019/10/17 10:50 | Cai, Y. Y. v Chen, Y. F. | L | 0-2 |
| Denmark Open Women | 2019/10/16 15:00 | Cai, Y. Y. v Fitriani Fitriani | W | 2-0 |
| Korea Open 2019, WS | 2019/09/26 02:25 | Tzu Ying Tai v Cai, Y. Y. | L | 2-0 |
| Korea Open 2019, WS | 2019/09/25 05:05 | Cai, Y. Y. v Chen, X. X. | W | 2-0 |
| Fuzhou China Open 2019, WS | 2019/09/17 06:30 | Sung, Ji Hyun v Cai, Y. Y. | L | 2-0 |
| World Championships Women | 2019/08/21 09:30 | Ga Eun Kim v Cai, Y. Y. | L | 2-1 |
| Macau Open 2019, WS | 2019/10/30 05:00 | Chun, Lin Ying v Yip, Pui Yin | W | 0-2 |
| Korea Open 2019, WS, Qualification | 2019/09/24 03:00 | Yip, Pui Yin v Jeon, Joo I | L | 0-2 |
| Fuzhou China Open 2019, WS | 2019/09/17 08:45 | Yip, Pui Yin v Chen, X. X. | L | 0-2 |
| Chinese Taipei Open 2019, WS | 2019/09/04 08:25 | Yi-Ting Hung v Yip, Pui Yin | L | 2-1 |
| World Championships Women | 2019/08/20 07:20 | Yip, Pui Yin v Cheah, Soniia | L | 0-2 |
| Open de Thaïlande - Femmes | 2019/07/31 07:40 | Fitriani Fitriani v Yip, Pui Yin | L | 2-1 |
| Japan Open Women | 2019/07/24 02:50 | Ongbamrungphan, B. v Yip, Pui Yin | L | 2-0 |
| Open Indonésie - Femmes | 2019/07/17 04:45 | Mia Blichfeldt v Yip, Pui Yin | L | 2-1 |