Instead of race-day T-shirts, all registered participants receive a commemorative pair of Undy 5000 boxers. It is a family-friendly event open to all ages, and in addition to the 5K, there is a 1-mile fun run.

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A portion of the funds raised from the event will go to the University of Colorado Cancer Center's Colorado Colorectal Screening Program to support colon cancer screening programs for uninsured Coloradoans.

The Denver Undy 5000 will feature the Colon Cancer Alliance's (CCA) Inflatable Colon, which is a giant, walk-through colon that shows the various stages of colon cancer, including descriptions about Crohn's disease and Colitis.

Created by the CCA in 2008, the Undy 5000 stresses the importance of timely colon cancer screenings, early detection, and provides valuable information for those already affected by the disease. Event proceeds help fund the CCA's patient support and public awareness programs.