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Marathons Near Colorado
Showing the next 27 runs that match your filters
Featured
Run the Rocks
Get $10 Off - Use Code RUNGUIDES2026
Date: Oct 11, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Golden, Colorado
Featured
Hot Chocolate Run - Denver
Get 15% Off - Use Code RGCO
Date: Oct 4, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Denver, Colorado
Pikes Peak Marathon + Ascent
Date: Sep 19-20, 2026 - Saturday to Sunday
Size: 1,000 - 5,000 participants
Location: Manitou Springs, Colorado
Fall Equinox Marathon, Half Marathon & 5 Mile
Date: Sep 20, 2026 - Sunday
Size: 100 - 500 participants
Location: Fort Collins, Colorado
Monument Marathon
Date: Sep 26, 2026 - Saturday
Size: 100 - 500 participants
Location: Gering, Nebraska
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Boulderthon: Boulder Marathon
Date: Sep 27, 2026 - Sunday
Size: 10,000+ participants
Location: Boulder, Colorado
Mainly Marathons Center of the Nation Series - Day 1
Date: Sep 28, 2026 - Monday
Size: 1 - 100 participants
Location: Cheyenne, Wyoming
Colorado Springs Marathon, Half, 5K, and Kids K
Get 15% Off - Use Code RunGuides26
Date: Oct 3, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: Colorado Springs, Colorado
West Elk Challenge Trail Marathon
Date: Oct 3, 2026 - Saturday
Size: 100 - 500 participants
Location: Delta County, Colorado
Windsor Marathon, Half Marathon, 10k & 5k
Date: Oct 4, 2026 - Sunday
Size: 500 - 1,000 participants
Location: Windsor, Colorado
Long View Marathon & Half Marathon
Date: Oct 10, 2026 - Saturday
Size: 100 - 500 participants
Location: Fort Collins, Colorado
Breckenridge Road Marathon
Date: Oct 10-11, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Breckenridge, Colorado
Blue Sky Trail Marathon
Date: Oct 17-18, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Fort Collins, Colorado
Run Through Time Trail Marathon and Half Marathon
Date: Mar 13, 2027 - Saturday
Size: 100 - 500 participants
Location: Salida, Colorado
Colorado Marathon
Date: May 2, 2027 - Sunday
Size: 1,000 - 5,000 participants
Location: Fort Collins, Colorado
Valkyrie Trail Race
Date: May 8, 2027 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Colfax Marathon
Date: May 15-16, 2027 - Saturday to Sunday
Size: 10,000+ participants
Location: Denver, Colorado
Spirit Trail Run
Date: May 30, 2027 - Sunday
Size: 100 - 500 participants
Location: Buena Vista, Colorado
Steamboat Marathon
Date: Jun 6, 2027 - Sunday
Size: 500 - 1,000 participants
Location: Steamboat Springs, Colorado
Estes Park Marathon
Date: Jun 19-20, 2027 - Saturday to Sunday
Size: 500 - 1,000 participants
Location: Estes Park, Colorado
Leadville Trail Marathon & Heavy Half
Date: Jun, 2027 (TBD)
Size: 1,000 - 5,000 participants
Location: Leadville, Colorado
Silverton Alpine Runs
Date: Jul, 2027 (TBD)
Size: 100 - 500 participants
Location: Silverton, Colorado
Aspen Valley Marathon
Date: Jul, 2027 (TBD)
Size: 500 - 1,000 participants
Location: Aspen, Colorado
Aspen Backcountry
Date: Aug, 2027 (TBD)
Size: 100 - 500 participants
Location: Aspen, Colorado
Bound for Boston Marathon & Half Marathon - Denver
Date: Aug 1, 2027 - Sunday
Size: 1 - 100 participants
Location: Denver, Colorado
Bound for Boston Marathon & Half Marathon - Denver
Date: Aug 1, 2027 - Sunday
Size: 1 - 100 participants
Location: Denver, Colorado
Boulder Rez Marathon
Date: Aug, 2027 (TBD)
Size: 100 - 500 participants
Location: Boulder, Colorado
Med Bow Rail Marathon and Half Marathon
Date: Aug, 2027 (TBD)
Size: 500 - 1,000 participants
Location: Laramie, Wyoming
Staunton Rocks! Trail Marathon & Half
Date: Aug, 2027 (TBD)
Size: 100 - 500 participants
Location: Jefferson County, Colorado
