110 metres hurdles 100 yards (91.44 m). The first standards were attempted in 1864 in Oxford and Cambridge: The length of the course was set to 120 yards (109.7 m) and over its course, runners were required to clear ten 3 foot 6 inch (1.07 m) high hurdles. The height and spacing of the hurdles have been related to Imperial units ever since. After the length of the course was rounded up to 110 metres in France in 1888, the standards were pretty much complete (except for Germany where 1 metre high hurdles were used until 1907). The massively constructed hurdles of the
110 metres hurdles instead of being jumped over and with three steps each between the hurdles was first used by the 1900 Olympic champion, Alvin Kraenzlein. The 110 metre hurdles have been an Olympic discipline since 1896. Women ran it occasionally in the 1920s but it never became generally accepted. From 1926 on, women have only run the 80 metre hurdles which was increased to 100 metres starting in 1961 on a trial basis and in 1969 in official competition. In 1900 and 1904, the Olympics also included a 200-metre hurdles race, and the IAAF recognized world records for the 200 metre hurdles