Discover The Best Half Marathons in Colorado
Browse our listing of half marathons in Colorado to find one that suits your goals.
upcoming 1/2 marathons in Colorado
September 27, 2026
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Boulder
October 3, 2026
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Colorado Springs
October 10, 2026
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Fort Collins
October 11, 2026
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Westminster
February 6, 2027
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Colorado Springs
April 11, 2027
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Arvada
April 18, 2027
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Fort Collins
April 24, 2027
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Loveland
May 8, 2027
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Colorado Springs
May 15, 2027
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June 6, 2027
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Boulder
June 12, 2027
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Granby
June 19, 2027
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July 17, 2027
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Castle Rock
August 6, 2027
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Boulder
August 15, 2027
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August 22, 2027
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Westminster
