A 'brief' race

Participants in the Undy 5000 raced in their underwear.

1,024 come out to play in their underwear

Undy 5000 raises more than $100K for colon cancer care

(June 27, 2009) Boxers or briefs? There were plenty of both on hand at the inaugural Denver Undy 5000 June 27 at City Park. The Colon Cancer Alliance hosted the “brief” 5k walk/run to raise awareness and funds for the fight against colorectal cancer. The event raised more than $100,000; $30,000 of which will benefit the Colorado Colorectal Screening Program at the University of Colorado Cancer Center. Race to cure colon cancer>>>