Discover The Best Marathons in Colorado for 2026
Browse our listing of marathons in Colorado to find one that suits your goals. Plus, get training tips.
For a full list of events, check out our calendar.
upcoming marathons in Colorado
May 9, 2026
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Colorado Springs
July 18, 2026
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Silverton
September 19, 2026
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Colorado Springs
September 20, 2026
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Fort Collins
October 3, 2026
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Colorado Springs