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
Venezuela at the 1952 Summer Olympics 110m hurdles. In jump events (long, high and triple jump) athletes enters in a Qualifying round where every athlete who achieve qualifying criteria (7.20 for long jump, 1.87 for high jump and 14.55 for triple jump) or 12 best performances including ties (long jump only) advance to the Finals. In the Final round athletes had 3 attempts to clear several ascending mark barries. In the javelin throw event athletes must achieve 64.00 in order to qualified to the Finals. 27 athletes competed in the long jump event, 36 in the high jump, 35 in the triple jump and 26 in