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(99/100 cm) 6.69 Wayne Davis: March 11, 2007 Landover, United States 15 years, 201 days 55 m hurdles (99/100 cm) 7.63 Ja Shawn Combs: March 12, 2011 Hillside, United States 60 m hurdles (99/100 cm) 7.62 Wayne Davis: March 16, 2008 Landover, United States 16 years, 207 days Pole vault: 4.70 m Eric Gordon: March 12, 2012 Normal, United States ...
Women's hurdles are slightly lower at 84 cm (2 ft 9 in) for the 100 m event and 76 cm (2 ft 6 in) for the 400 m event. [62] [63] The most common events are the 100 metres hurdles for women, 110 m hurdles for men and 400 m hurdles for both sexes. The men's 110 m has been featured at every modern Summer Olympics while the men's 400 m was ...
The proper length of the first lane of a competitive running track is 400 m (1,312.3 ft). Some tracks are not built to this specification, instead being a legacy to imperial distances such as 440 yd (402.336 m), equivalent to a quarter of a mile.
55 m hurdles (107/100 cm) 7.30 Josh Hembrough: Northern High School: Forest Hills, Michigan: Allendale, Michigan: January 12, 2007 60 m hurdles (99/100 cm) 7.40 Trey Cunningham: Winfield High School Winfield, Alabama: Fort Washington Avenue Armory: New Balance Nationals: March 12, 2017 [120] 60 m hurdles (107/100 cm) 7.85 Josh Hembrough ...
The world best time for a "football 40" is 4.17 by Deion Sanders, while the extrapolated best for an Olympic-level athlete (including reacting to a starting gun) is 4.24 by Maurice Greene at the 2001 World Championships in Athletics. [246] [247] Under conventional football timing on a turf field in 2017, Christian Coleman reportedly ran a 4.12 ...
The 100 metres hurdles, or 100-meter hurdles, is a track and field event run mainly by women (the male counterpart is the 110 metres hurdles). For the race, ten hurdles of a height of 33 inches (83.8 cm) are placed along a straight course of 100 metres (109.36 yd). The first hurdle is placed after a run-up of 13 metres from the starting line.
The crosstie spacing of mainline railroad is approximately 19 to 19.5 inches (48 to 50 cm) for wood ties or 24 inches (61 cm) for concrete ties. The number of ties is 3,250 wooden crossties per mile (2,019 ties/km, or 40 ties per 65 feet) for wood ties or 2,640 ties per mile for concrete ties. [3] [42] [43]
Although a quarter mile (1320 feet, 402 m) is the best known measure for a drag track, many tracks are eighth mile (201 m) tracks, and the premiere classes will run 1,000 foot (304.8 m) races. The race is begun from a standing start which allows three factors to affect the outcome of the race: reaction time, power/weight ratio, and traction.