referring to a run of long distance, generally over 15 miles. although this term is sometimes used to refer to the length of a marathon this is not the only application.
by runningterms March 13, 2011

referring to a run of long distance, generally over 15 miles. although this term is sometimes used to refer to the length of a marathon this is not the only application.
by runningterms March 13, 2011
