Ugly Sweater 5K

Sunday, July 19, 2026

The Donor Dash is a 5K run/walk to honor the lives of organ and tissue donors, celebrate the lives of organ and tissue recipients, and recognize those who continue to wait for a lifesaving transplant.

We are excited to be at Washington Park for the 27th Annual Donor Dash on Sunday, July 19, 2026!

Ways to HONOR CELEBRATE & RECOGNIZE at Donor Dash:

THE DASHBOARD: As a participant, you can share a photo and a short message highlighting your reason for participating or your personal connection to donation and transplantation. These photos and messages will be displayed throughout race morning, honoring, celebrating, and recognizing the stories and inspiration behind our Donor Dash community. Learn more about the Dashboard here!

RIBBON CEREMONY: Please attend the on-stage program starting at 9:30 a.m. on race day to hear inspirational stories and recognize the different connections around organ, eye, and tissue donation. On race day, you can grab your ribbon near the finish line or at the ribbon tent near the expo area. The ribbon connection colors are below.

Have you been dreaming of running the Boston Marathon? Need to shave a few minutes off your qualifying time? Or maybe you're just looking for the perfect course to set a new PR? Whether Boston is your goal or not, the Bound for Boston Marathon & Half Marathon is for you.

We're racing around Northfield High School, and the course is a 1-mile super flat & super fast loop! The Full Marathon is USATF Certified making it a Boston Qualifier!

This event is uniquely designed for serious runners. We will have water and an electrolyte drink at the aid table. Participants are welcome to bring their own personalized aid to place on the aid tables, allowing you to grab exactly what you need each time you pass. Many runners even bring a cheer crew to help hand out fuel and keep the motivation high throughout the race.

To maintain the best possible experience, this is intentionally a small, focused event, capped at just 75 participants.

We will have a great race shirt and finisher medals for all participants. Awards for both distances are in the usual 5-year age groups.

Fast course, flexible support, and a chance to chase your goals—this is the race that lets you run your perfect day.

By design this will be a smaller event, focused on getting you your fastest time.

Miles for Migraine will host its 7th annual 2-mile Walk, 5K Run and Relax Colorado event on Saturday August 15th at Great Lawn Park in Denver. This event is a fundraiser for Migraine & Headache Awareness, Treatment & Research. It's more than a walk/run - come connect with your local migraine & headache community, listen to our speakers & visit sponsors in the festival area.

The 5K run is professionally timed. The Walk and the Relax events are free, but donations are encouraged. All walk and run finishers receive a finisher medal.

Dress up in your best purple flair for a chance at a fun prize!

Funds raised will benefit Miles for Migraine free programs & services as well as the University of Colorado Headache Center and Children's Colorado Headache Center to support local migraine research and fellowship training programs.

Join Conservation Colorado for the second annual Rebel Run 5k! Run, walk or stroll to show your passion for Colorado's climate, air, land, water and communities. Create or join a team, or go solo – every dollar you donate or raise supports Conservation Colorado's efforts to protect the beautiful state we love and the communities who call it home. After the race, celebrate at our finish line party with food, drinks, sponsor booths and more. Sign up today to become a rebel and move for the cause! Stay tuned for registration opening.