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Colorado Duathlon Calendar 2026-2027

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Explore the best duathlons in Colorado for 2026-2027! Our updated list features 4 exciting races across the region. Find your next race in Colorado below and join the running community at these great events!

February 2027
Feb
20
Sa

Chilly Cheeks Duathlon

Duathlon Individual Duathlon 2.5 10.8 2.5 mi Duathlon Relay 2.5 10.8 2.5 mi
June 2027
Jun
26-27
Sa - Su

Race in the Clouds - Alma Dirt Festival

Trail Run Cross Duathlon 6 mi 13 mi 22 mi
September 2027
Sep
12
Su

Harvest Moon Triathlon

Triathlon Duathlon Sprint Olympic Middle distance Full distance
Sep
26
Su

Last Call Triathlon

Triathlon Duathlon Aquathlon Multisport Aquathlon 750 m 3.1 mi Aquathlon Relay Team 750 m 3.1 mi Super sprint 450 m 4.9 2.15 mi Aquabike 750 m 10 mi
Monthly updates for Colorado

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