Colfax Race Week Events

15 year celebration – join us all week!

Join us for a full week of activities leading up to race weekend!

During the race, runners are provided the Ultimate Urban Tour throughout the Denver area on the courses, including the Denver Zoo, Empower Field at Mile High run-throughs, 7 miles of water, Cherry Creek Bike path, downtown, firestation run-throughs, and much more.   Join Denver’s only marathon weekend.

We are thrilled to announce 9News as the sponsor of the Colfax Marathon Race Week Events!


Colorado Running Hall of Fame

2020 inductee ceremony and acknowledgement of High School honorees


Marathon Movie Night


Shake Out Runs

Multiple locations throughout Denver Metro Area with Colfax Marathon Ambassadors


Colfax Evening Out


Health & Fitness Expo – Day 1 – 2pm – 8pm

Meet up with friends and teammates at the Health & Fitness Expo presented by Shipt at the spectacular Club Suites Area at Empower Field at Mile High.  Pick up your race packet, tech shirt, and enjoy shopping for great new gear.


Colfax 5K

The Colfax 5K kicks off Marathon weekend on Saturday. Set a fast PR, jog or walk the course at the official Marathon Start and Finish! Strollers and dogs are welcome!

Health & Fitness Expo – Day 2 – 9am – 5pm

See Friday.


26.2 Marathon

Run through Denver’s best landmarks in the 15th Anniversary Colfax Marathon!  Run through the home of the Denver Broncos – Empower Field at Mile High – twice!  Run along 7 miles of water including Confluence Park, Cherry Creek, the Platte and Sloan’s Lake, through Denver Fire Station #1, through downtown Denver and onto America’s longest main street, Colfax Avenue – all under the majestic views of Colorado’s Rocky Mountains.

Marathon Relay

What’s better than running 26.2 miles through the Mile High City?  Sharing the miles with friends!  Get a team of five to run Denver’s only 26.2 mile Marathon Relay.  We have 3 divisions in the Relay: Open (keep reading), Corporate Cup (employee teams), and Government Cup (employee teams).  See the great sites of the Mile High City on each leg – from Empower Field at Mile High \ to the Confluence, Sloan’s Lake, downtown, or the neighborhoods around Colfax – which one will you run?    The relay sells out almost every year!!

Half Marathon

Denver’s wildest race takes runners on a one mile trek through Denver Zoo, along the tree-lined boulevards of Park Hill and through Aurora Fire Station #1!  Enjoy the quintessential Colorado entertainment along the way – because the journey is just as important as the destination.   The Colfax Half Marathon sold out several years.

Urban 10 Miler

Colorado’s 10-mile race runs the final miles of the marathon course through Empower Field at Mile High, Confluence and downtown! Start on the Rocky Mountain College of Art & Design campus, finish in City Park.  Spots are limited and this race has sold out in several years.

Big After Party!

Colorado renowned band headlines the awesome afterparty and Beer Garden lakeside in City Park! Free beer by Michelob Ultra as well as lunch. Runners can meet up with their friends, family and fellow runners to show off their finisher medals and enjoy the spring day.  Meet up with your running clubs at their tents.  Charity Partners each have a blue tent in Charity Partner Village, so make sure to stop and say hello.  Our runners say it best:

“I’ve done the Colfax Marathon 3 years in a row, this was the best post-race party yet! Great job, and thanks!“
–@runcolfax Twitter follower