Career
Liu Yong started badminton training when he was 8, and was taken into the Chinese National Team in 1993. World Championships
In the next edition in 2001, Liu reached the mixed doubles quarterfinals with Cheng Jiao but lost to Michael Søgaard and Rikke Olsen. Summer Olympics
Liu Yong competed in badminton at the 2000 Summer Olympics in mixed doubles with Ge Fei.
In the first round they had a bye, and in the second round they were defeated by Chris Bruil and Erica van den Heuvel, from the Netherlands.