April 21, 2008 Armstrong trades in bike for running shoes Play video

(NECN: Boston, Mass.) - Seven-time Tour de France winner Lance Armstrong was among the runners in the 112th Boston Marathon. He finished 496th in 2:50:58.

Armstrong ran in celebration of Nike's LIVESTRONG Collection.

100% of the profits raised from the collection will go to the Lance Armstrong Foundation to fight cancer.

Click here to check out how some other famous faces did in the race!