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A half marathon is a road running event of 21.0975 kilometres (13 miles 192.5 yards)—half the distance of a marathon. [1] It is common for a half marathon event to be held concurrently with a marathon or a 5K race, using almost the same course with a late start, an early finish, or shortcuts. [2]
After setting the national high school record in the mile, Jim Ryun set the world record in 1966 and then again in 1967, when he ran 3:51.1. Ryun was 19 at the time, making him the youngest world record holder in the mile to date. His record stood for nine years. [4] Ryun competed in the 1964, 1968 and 1972 Olympic games.
On 30 March 1991, Arturo Barrios ran a world record distance of 21.101 km in one hour, becoming the first man to run the half marathon distance in under one hour. [11] On 3 April 1993, Moses Tanui became the first man to run a half marathon race in under one hour, with a time of 59:47. [12]
Race time prediction formula, running course certification. Peter Riegel (January 30, 1935 – May 28, 2018) was an American research engineer who developed a mathematical formula for predicting race times for runners and other athletes given a certain performance at another distance.
For the two-mile run, they run 3200 meters. For the long-hurdle race, they run 300 meters instead of the 400 metres hurdles. Some states ran over lower hurdle heights for a period of time. In field events, boys throw different weights of their implements than with international open division or the more comparable junior-division implements.
The 25K run (25 kilometers, approximately 15.52 miles) is a long distance running footrace that is between the distance of a half marathon and a marathon. It was formerly an official world record distance in road running by World Athletics , [ 1 ] but has since been downgraded to world best status.
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Middle-distance running events are track races longer than sprints, ranging from 500 metres up to two miles (3218.688 metres).The standard middle distances are the 800 metres, 1500 metres and mile run, although the 3000 metres may also be classified as a middle-distance event. [1]