Celebrate our 12th Anniversary race! The Kaiser Permanente Denver Colfax Marathon: 2 days, 7 races. Includes Denver's only marathon! Which will you choose? Denver's only marathon! May 20-21, 2017.
This springtime race is the ultimate urban tour of the city - Marathon runs through the stadium, along 7 miles of rivers, lakes and bridges. Half Marathon treks one mile through the zoo. More than 200 Charity Partners - run for a good cause!
- Hours: Hours vary. See website for more details.