300 metres hurdles to beginning of a standard 400 meter hurdle race, but its placement on the track is shifted 100 meters around the track so it finishes at the common finish line on the straightaway, where the longer race would reach the same point near the end of the second turn. There are 8 hurdles in the high school version, the last hurdle just 10 meters before the finish line. High schools began adopting the longer hurdle event state by state starting in the 1960s. At the time, most which school competition was using United States customary units, so the race was
Athletics at the 2004 Summer Olympics – Women's 100 metres hurdles an Olympic misfortune in the hurdles, crashing in a heap on the first hurdle of the qualifying heat. , the existing World and Olympic records were as follows. The following records were established during the competition: The qualification period for athletics was 1 January 2003 to 9 August 2004. For the women's 100 metres hurdles, each National Olympic Committee was permitted to enter up to three athletes that had run the race in 12.96 seconds or faster during the qualification period. If an NOC had no athletes that qualified under that standard, one athlete that had run the race in