Do you marathon? In 2013, more than 1,100 marathons were held in the U.S. with 541,000 finishers—an all-time high. That means 308,400 men and 232,600 women ran 26.2 miles at least once last year. And a record 254,300 of those runners were older t...<\/div>\r\n\t\t<\/div><\/td><\/tr><\/table>\r\n\t\t\t\t<\/div>\r\n\r\n\r\n\r\n\r\n\r\n