Growth of the long run

The Marine Corps Marathon’s quick sellout Wednesday mirrors the popularity of running 26.2 miles. There were roughly 850 U.S. marathons in 2012, up from 300 in 2000. Read related article.

Growth of the long run
Sources: RunningUSA.org, Marine Corps Marathon. The Washington Post. Published on March 27, 2013, 9:08 p.m.
 
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