| Hylo Open MD | 11/05 17:25 | 1 | Lee / Wang v Liu L / Ou X | W | 0-2 | |
| Hylo Open MD | 11/04 18:35 | 2 | Sondergaard/Toft v Liu L / Ou X | W | 1-2 | |
| Hylo Open MD | 11/03 16:00 | 3 | 레인 B / 벤디 S v Liu L / Ou X | W | 1-2 | |
| Hylo Open MD | 11/02 16:10 | 4 | 포포프 C / 포포프 T J v Liu L / Ou X | W | 0-2 | |
| Hylo Open MD | 10/31 17:30 | 5 | Chen/Presley Smith v Liu L / Ou X | W | 0-2 | |
| French Open MD | 10/28 19:00 | 2 | 아스트루프 K / 라스무센 A S v Liu L / Ou X | L | 2-0 | |
| French Open MD | 10/27 15:00 | 3 | 아흐산 M / 세티아반 H v Liu L / Ou X | W | 0-2 | |
| French Open MD | 10/26 12:15 | 4 | Liu L / Ou X v Jin/Na | W | 2-1 | |
| French Open MD | 10/24 13:00 | 5 | Liu L / Ou X v 람스퍼스 M / 사이델 M E | W | 2-0 | |
| Denmark Open MD | 10/18 13:55 | 5 | Liu L / Ou X v 이 Y / 양 C T | L | 0-2 | |
| Fuzhou China Open 2019, MD | 09/08 05:15 | 3 | Liang/Wang v Liu L / Ou X | L | 2-0 | |
| Fuzhou China Open 2019, MD | 09/07 07:00 | 4 | Liu L / Ou X v 이 A / 리 S | W | 2-1 | |
| Fuzhou China Open 2019, MD | 09/05 11:05 | 5 | Liu L / Ou X v 포포프 C / 포포프 T J | W | 2-0 | |
| World Championships MD | 08/25 16:10 | 3 | 찌아 A / 소 W Y v Liu L / Ou X | L | 2-1 | |
| World Championships MD | 08/24 14:20 | 4 | Liu L / Ou X v 루 C Y / 양 P H | W | 2-0 | |
| World Championships MD | 08/23 12:40 | 5 | Liu L / Ou X v Jomkoh S / Kedren K | W | 2-0 | |
| Japan Open MD | 07/29 04:20 | 2 | 호키 T / 고바야시 Y v Liu L / Ou X | L | 2-0 | |
| Japan Open MD | 07/28 01:00 | 3 | Liu L / Ou X v 코가 A / 사이토 T | W | 2-1 | |
| Japan Open MD | 07/27 01:10 | 4 | 고 S F / 이즈딘 N v Liu L / Ou X | W | 0-2 | |
| Japan Open MD | 07/26 04:30 | 5 | 마쓰이 K / 다케우치 Y v Liu L / Ou X | W | 0-2 | |
| Korea Open MD | 07/20 10:50 | 4 | Kim/Wang v Liu L / Ou X | L | 2-1 | |
| Korea Open MD | 07/18 08:25 | 5 | Arjun / Kapila v Liu L / Ou X | - | away | |
| Indonesia Open MD | 06/15 08:05 | 4 | 코가 A / 사이토 T v Liu L / Ou X | L | 2-1 | |
| Indonesia Open MD | 06/14 09:20 | 5 | 아스트루프 K / 라스무센 A S v Liu L / Ou X | W | 1-2 | |
| Singapore Open MD | 06/06 08:20 | 5 | Liu L / Ou X v Kim W H / Kim H R | L | 1-2 | |
| Thailand Open MD | 05/31 16:30 | 5 | Seo/Kang v Liu L / Ou X | L | 2-0 | |
| Sudirman Cup MD | 05/20 13:40 | - | Liu L / Ou X v 호키 T / 고바야시 Y | W | 2-1 | |
| Sudirman Cup MD | 05/18 12:10 | - | Liu L / Ou X v 아스트루프 K / 라스무센 A S | W | 2-1 | |
| Sudirman Cup MD | 05/14 10:00 | - | Liu L / Ou X v Ezzat/Montaser | W | 2-0 | |
| Asia Championships MD | 04/27 09:35 | 4 | Liu L / Ou X v 피크리 M S / 마울라나 B | L | 1-2 |