Clarence DeMar DeMar did not return to serious competition until 1922, when he again won the Boston marathon in a course record 2:18:10. He repeated the victory in 1923 and 1924. In the latter year the full Olympic distance – 26 miles, 385 yards – was run. He was selected as one of the six runners on the U.S Olympic marathon team for the 1924 Summer Olympics, where he finished third. DeMar continued his success with a second-place finish at the 1925 Boston marathon, and a third-place finish the next year. He followed that with five consecutive marathon victories: at the Baltimore
Athletics at the 1908 Summer Olympics – Men's marathon yards on the track") eventually became the origin of the modern Marathon distance of "no less than 42.195 km". According to the book "The Marathon Makers" by John Bryant, the first mile of the 1908 Olympic Marathon course was remeasured by John Disley in the late 1990s and was found to be 174 yards (159 m) short. The official report lists the leaders at each mile from the fourth to the twenty-fourth: Thomas Jack (miles 4–5); Frederick Lord (miles 6–14); Charles Hefferon (miles 15–24). Dorando Pietri of Italy caught Hefferon and sped up between Old Oak Common Lane and Wormwood