As of April 21, 2014, there have been 118 Boston Marathons. This race is the oldest annually held marathon in the country.
He won the Boston Marathon two times, in 1935 and 1945. He was a second place finisher seven times, and in all, competed in a record 61 Boston Marathons.
There is no accounting for the number of American's who run marathons each year. Marathons are run at many school levels, as well as at city, state, and national levels.
Marathons are 26 miles long. If you average 26 mph, you'll make it in an hour.
The five marathon "majors" are Boston, Berlin, Chicago, London and New York. Other, but by no means an exaustive list, marathons that have large participation include the Marine Corp Marathon, LA Marathon and the Paris Marathon.
less then 1/10 of 1%