20221223
2026-10-17

Oct 17, 2026 at 7:00 AM

Blue Sky Marathon

4780 W County Road 38E

Fort Collins CO, 80526

USA

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Entry Fee $110
(Lowest or Early Registration)

Entry Fee 2 $130
(Highest or Late Registration)

Prize Money: no

Distance(s):

  • 26.2M

Type: Trail

Participant Limit: 350

Starting Elevation: 5336

High Point: 6503

Percent of the course on un-paved trails: 95%

First Year of the Event: 2008

Men's Record: M: 3:06:17

Masters Men Record: MM: 3:17:22

Women's Record: W: 3:33:57

Masters Women Record: MW: 3:54:11

Description:

Taking place on the trails between Horsetooth Mountain Park and the Devil’s Backbone Open Space, the Blue Sky courses take you on a north-south tour of the easternmost hogbacks of Northern Colorado’s Front Range mountains. With a moderate amount of elevation gain and loss and a variety of terrain, the route offers a little bit of something for everyone. It is designed to appeal to both veteran trail runners and those looking to experience their first trail racing adventure. The generous cut-offs should ensure a successful day for everyone.

The course is 100% dirt and 90% sweet Colorado singletrack. The terrain ranges in difficulty from smooth dirt trail to technical rock gardens. A small portion of the route is on dirt road (no motor vehicle access) and gravel trail, with the meat of the running done on the beautiful and distinctive redstone hardpack of the Blue Sky Trail.

After the race, kick back and enjoy the BBQ, awards and generous sponsor giveaways.

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Past Event Dates

Held on Oct 17, 2026

Held on Oct 18, 2025

Held on Oct 19, 2024

Held on Oct 21, 2023

Held on Oct 15, 2022

Held on Oct 16, 2021

Held on Oct 17, 2020

Held on Oct 19, 2019

Held on Oct 20, 2018

Held on Oct 21, 2017

Held on Oct 20, 2016

Held on Oct 04, 2015

Held on Oct 05, 2014

Held on Oct 06, 2013

Held on Oct 07, 2012

Held on Oct 02, 2011

Held on Oct 03, 2010

Held on Oct 04, 2009

Held on Oct 05, 2008