 By far the most common events are the 100 metres hurdles for women , 110 m hurdles for men and 400 m hurdles for both sexes . The men 's 110 m has been featured at every modern Summer Olympics while the men 's 400 m was introduced in the second edition of the Games . Women 's initially competed in the 80 metres hurdles event , which entered the Olympic programme in 1932 . This was extended to the 100 m hurdles at the 1972 Olympics , but it was not until 1984 that a women 's 400 m hurdles event took place at the Olympics ( having been introduced at the 1983 World Championships in Athletics the previous year ) . 
 By far the most common events <a href='drop_aux' title='1'><mark>are</mark></a>the 100 metres hurdles for women , 110 m hurdles for men and 400 m hurdles for both sexes . The men <a href='null_genetive' title='2'><mark>'s</mark></a>110 m <a href='been_done' title='3'><mark>has</mark></a> been featured at every modern Summer Olympics while the men <a href='null_genetive' title='4'><mark>'s</mark></a>400 m was introduced in the second edition of the Games . Women <a href='null_genetive' title='5'><mark>'s</mark></a>initially competed in the 80 metres hurdles event , which entered the Olympic programme in 1932 . This was extended to the 100 m hurdles at the 1972 Olympics , but it <a href='negative_concord' title='6'><mark>was</mark></a> <a href='negative_concord' title='7'><mark>not</mark></a>until 1984 that a women <a href='null_genetive' title='8'><mark>'s</mark></a>400 m hurdles event took place at the Olympics ( <a href='been_done' title='9'><mark>having</mark></a> been introduced at the 1983 World Championships in Athletics the previous year ) . 
By far the most common events the 100 metres hurdles fa women , 110 m hurdles ffamen and 400 m hurdles for both sexes . da men  110 m done been featured at every modern Summer Olympics while tdamen  400 m was introduced in the second edition of thdaames . Women  initially competed in the 80 metres hurdles event , which entered thedaympic programme in 1932 . This was extended to the 100 m hurdles at the 1972 Olympics , but it ain't untill 1984 that a women  400 m hurdles event took place at the Olympics ( done been introduced at the da3 World Championships in Athletics the previous year ) .