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
Athletics at the 1976 Summer Olympics – Women's 100 metres hurdles 4 of each heat (Q) qualified. Athletics at the 1976 Summer Olympics – Women's 100 metres hurdles The women's 100 metres hurdles competition at the 1976 Summer Olympics in Montreal, Quebec, Canada was held at the Olympic Stadium on July 28–29. The Women's 100m hurdles competition consisted of heats (Round 1), Semifinals and a Final. The four fastest competitors from each race in the heats qualified for the semifinals. The top four athletes from each semifinals race advanced to the final. Prior to this competition, the existing world and Olympic records were as follows: Qual. rule: first 4 of each