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The 100-yard dash is a track and field sprint event of 100 yards (91.44 metres). It was part of the Commonwealth Games until 1970 , and was included in the triathlon of the Olympics in 1904 . It is not generally used in international events, replaced by the 100-metre sprint (109.36 yards).
The 100 metres, or 100-meter dash, is a sprint race in track and field competitions. The shortest common outdoor running distance, the 100-meter (109.36 yd) dash is one of the most popular and prestigious events in the sport of athletics. It has been contested at the Summer Olympics since 1896 for men and since 1928 for women.
Since 1921, the men's 100-yard dash was usually held until 1975, with the exception of the 100 meters being contested in Olympic years starting in 1932. Metrication occurred in 1976, so all subsequent championships (as well as those during some Olympic years before 1976) were at the metric distance.
It is especially popular as a unit of measurement with shooters familiar with the imperial measurement system because 1 MOA subtends a circle with a diameter of 1.047 inches (which is often rounded to just 1 inch) at 100 yards (2.66 cm at 91 m or 2.908 cm at 100 m), a traditional distance on American target ranges.
A common adjustment value in firearm sights is 1 cm at 100 meters which equals 10 mm / 100 m = 1 / 10 mrad. The true definition of a milliradian is based on a unit circle with a radius of one and an arc divided into 1,000 mrad per radian, hence 2,000 π or approximately 6,283.185 milliradians in one turn , and rifle scope ...
The first manual time of 9.9 seconds was recorded for Bob Hayes in the final of the 100 metres at the 1964 Olympics. Hayes' official time of 10.0 seconds was determined by rounding down the electronic time of 10.06 to the nearest tenth of a second, giving the appearance of a manual time.
A 100 m event for professionals only was held several weeks later. Four entrants are known and the winner was Edgar Bredin, a British former world record holder. [130] [131] A 100 m professionals handicap race is also believed to have been held in 1900. In 1904 a 100-yard dash handicap race was contested and an American, C. Hastedt, was the ...
He was recruited to Southern Illinois University in Carbondale, Illinois, where he competed successfully on their track team, including becoming twice USA champion in the 100 yards sprint, in 1969 and 1970. [2] In 1974, he ran the fastest 100-yard dash with manual timing of 9.0 seconds, a record he still holds. [3]