Berlin Marathon race director Mark Milde and Mary Whittenberg on feedback they get form athletes on the World Marathon Majors before the 2010 Chicago Marathon

Oct 9, 2010

1:23

Berlin Marathon race director Mark Milde and Mary Whittenberg on feedback they get form athletes on the World Marathon Majors before the 2010 Chicago Marathon

Oct 9, 2010



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Berlin Marathon race director Mark Milde on the world marathon records before the 2010 Chicago Marathon

Oct 9, 2010



1:35

Berlin Marathon race director Mark Milde on the World Marathon Majors before the 2010 Chicago Marathon

Oct 9, 2010