Marathons in Colorado

Experience a highly scenic, fast downhill course in Fort Collins, popular for Boston Marathon qualifiers and supporting local charities.

• Scenic
• Competitive
• For a Cause

Sun, May 3, 2026, 6:30 AM MDT·26.2 Miles·Fort Collins, CO

Push PotentialRUN

Course · Rolling · Timed race

Run the Colfax Marathon, Half Marathon, or relay as a SoleMate, raising funds for Girls on the Run of the Rockies with full support.

• For a Cause

Sun, May 17, 2026, 6:00 AM MDT·26.2 Miles·Denver, CO

Push PotentialRUN

Course · Rolling · Timed race

Run a Boston Qualifier through stunning Rocky Mountain scenery, alongside the Elk River and emerald pastures. A top destination marathon experience.

• Scenic
• Competitive

Sun, Jun 7, 2026, 7:30 AM MDT·26.2 Miles·Steamboat Springs, CO

Serious TestRUN

Course · Hilly · Timed race

A high-altitude marathon challenge in Aspen, Colorado, offering a mountainous 26.2-mile course for dedicated runners.

Sat, Jul 25, 2026, 6:00 AM MDT·26.2 Miles·Aspen, CO

Serious TestRUN

Course · Hilly · Timed race

Chase your Boston Qualifier or a new PR on this super flat, fast 1-mile loop course, designed for serious runners.

• Competitive

Sun, Aug 2, 2026, 6:30 AM MDT·26.2 Miles·Denver, CO

Push PotentialRUN

Course · Rolling · Timed race

A challenging and scenic high-altitude trail marathon and half marathon through Colorado's stunning Staunton State Park.

• Scenic

Sat, Aug 22, 2026, 7:00 AM MDT·26.2 Miles·Pine, CO

Beast ModeRUN

Course · Mixed · Hilly · Timed race

Conquer America's Ultimate Challenge: a 26.2-mile marathon ascending and descending the iconic Pikes Peak with significant elevation.

• Competitive

Sun, Sep 20, 2026, 7:00 AM MDT·26.2 Miles·Manitou Springs, CO

Serious TestRUN

Course · Hilly · Timed race

Experience the beauty of Colorado Springs on a course that winds through parks and trails, culminating in a festive finish.

• Scenic
• Festive

Sat, Oct 3, 2026, 7:00 AM MDT·26.2 Miles·Colorado Springs, CO

Serious TestRUN

Course · Mixed · Hilly · Timed race

Explore Windsor's varied landscapes and enjoy a vibrant after-party, all while supporting local causes.

• Fun
• Scenic
• For a Cause

Sun, Oct 4, 2026, 7:00 AM MDT·26.2 Miles·Windsor, CO

Push PotentialRUN

Course · Trail · Rolling · Timed race

A scenic point-to-point marathon from Fort Collins to Loveland, featuring stunning mountain views on newly completed bike paths.

• Scenic

Sat, Oct 10, 2026, 7:30 AM MDT·26.2 Miles·Fort Collins, CO

Push PotentialRUN

Course · Rolling · Timed race

Run through Durango's breathtaking fall scenery on a paved course, enjoying high-country air and small-town hospitality.

• Inaugural
• Fun
• Scenic

Sun, Oct 11, 2026, 8:00 AM MDT·26.2 Miles·Durango, CO

Serious TestRUN

Course · Road · Hilly · Timed race

Conquer challenging high-altitude trails with spectacular views in Salida, Colorado, knowing your run supports vital local organizations.

• Scenic
• Competitive
• For a Cause

Sat, Mar 13, 2027, 8:00 AM MST·26.2 Miles·Salida, CO

Serious TestTRAIL

Course · Trail · Hilly · Timed race