They run in a race called a marathon. A full marathon is 26 miles 385 yards (42.195 km).
Only roughly 40 percentage of runners complete a marathon race.
23,021 runners started the 2010 Boston Marathon (out of the 26,735 who entered).
Runners in the Chicago Marathon complete 26.2 miles. This is the standard marathon distance. They Chicago Marathon also offers a half marathon option which is 13.1 miles.
To reflect heat off the runners.
I'd say Mesomorph at about 171
By the Boston city
no they are not becuse,marathon runners have to run longer distances.
60 percent of the time they complete it everytime