400 metres hurdles to 400 metres, or one lap of the stadium, and the number of hurdles was reduced to ten. The official height of the hurdles was set to 91.4 cm (3 feet) for men and 76.20 cm (2 ft, 6 inches) for women. The hurdles were now placed on the course with a run-up to the first hurdle of 45 metres, a distance between the hurdles of 35 metres each, and a home stretch from the last hurdle to the finish line of 40 metres. The first documented 400 m hurdles race for women took place in 1971. The International Association
2015 World Championships in Athletics – Men's 110 metres hurdles and the next 2 fastest (q) advanced to the final. Wind:<br>Heat 1: 0.0 m/s, Heat 2: -0.2 m/s, Heat 3: -0.1 m/s The final was held at 21:20. 2015 World Championships in Athletics – Men's 110 metres hurdles The men's 110 metres hurdles at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 26, 27 and 28 August. The returning champion was David Oliver, while world leader in 2015 Orlando Ortega is ineligible after switching his nationality to Spain (after defecting to the USA at the 2013 Championships). World record holder Aries Merritt was here,