Marathon.

Marathoners running. A large group of legs in a walking race with a pavement foreground.

[url=http://www.istockphoto.com/search/lightbox/9786738][img]http://dl.dropbox.com/u/40117171/group.jpg[/img][/url] [url=http://www.istockphoto.com/search/lightbox/9786766][img]http://dl.dropbox.com/u/40117171/sport.jpg[/img][/url]