The Undy Run/Walk isn’t your everyday run. As we head into our 10th year, we’re proud to share that we’ve raised more than 10 million through this underwear-themed event. We’re super proud, but we also know our work isn’t done. That’s why we continue hitting the streets in our briefs and asking you to join us.

In 2016, we reached new records and have our sponsors, supporters and participants to thank for that. We look forward to continuing this trend in 2017, we’re already jumpin’ out of our shorts with excitement! From new cities to new partners, this year may be our best Undy Run/Walk year yet.

A fun twist on a serious topic, the Undy Run/Walk is sparking much-needed conversations and kicking colon cancer’s butt, one city at a time. And if that’s not enough, you even have the chance to stroll through a larger-than-life inflatable colon on site! (How many chances do you have to do that in your life?) Thanks for your continued support. See you in your home town!

The Undy Run/Walk team honors our colon cancer warriors by providing FREE registration to all colorectal cancer patients and survivors. Contact the Undy team at 202-204-7561 or email at for the free code.

Can’t Join Us in Person? Don’t miss out on the fun!  Even if you can’t physically be at the event, you can register as a “Virtual Participant” and join us in spirit. This registration option allows you to register as an individual or join a team and be an active part of the Undy Run/Walk experience from anywhere in the world.

Scope It Out 5K

Scope It Out 5K was started by Charlotte Kraenzle Peña in honor of her father, Charles A. Kraenzle. Their inaugural race was held in 2005 and drew more than 700 participants. Learn more about this event by visiting: Scope It Out 5K