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
2007 World Championships in Athletics – Women's 100 metres hurdles 2007 World Championships in Athletics – Women's 100 metres hurdles The 100 metres hurdles at the 2007 World Championships in Athletics was held at the Nagai Stadium in Osaka, Japan from August 27 to August 29. Bursting from the blocks in the final, Susanna Kallur took a narrow lead over the first hurdle slightly ahead of defending champion Michelle Perry. Over the next two hurdles, Kallur established a half metre gap on Perry, with returning silver medalist Delloreen Ennis-London almost matching Perry. After the fifth hurdle, Ennis-London started to spend more time in the air over the hurdles, losing ground.