(1) I'm interested in track event, field event, ball games and swimming.

(2) Liu became the first Chinese athlete to win a gold medal in a track event when he won the 110 meter hurdles at Athens in 2004.

(3) Between 1997 and 2001, Yang Yang(A) continued to dominate the world championships in women's short track event. She qualified for 20 individual finals and won 12 of them.

(4) Guia circle, also known as Guia Circuit, is the world's only street track event that includes both a formula touring car race and a motorcycle race.

(5) In her first outdoor meet, she set a world record for 100m. The 1928 100m was the first women's track event to be contested in Olympic history.