Race catalog · Updated nightly
Upcoming running, cycling, triathlon and ultra races, updated nightly from RunSignup, BikeReg and ACTIVE. Missing a race? Submit it
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282 races
Colorado Springs, CO
Good weather · 83/100 Typical: 55° / 28°F · 14% rain
Boulder, CO
Ideal weather · 90/100 Typical: 60° / 33°F · 19% rain
34% faster times (5K)past finishers
Durango, CO
Fair weather · 63/100 Typical: 50° / 28°F · 19% rain
Lone Tree, CO
Ideal weather · 96/100 Typical: 58° / 31°F · 16% rain
11% faster times (trail half)past finishers
Colorado Springs, CO
Ideal weather · 92/100 Typical: 55° / 28°F · 14% rain
6% slower times (5K)past finishers
Denver, CO
Ideal weather · 89/100 Typical: 59° / 33°F · 19% rain
13% slower times (5K)past finishers
Fort Collins, CO
Ideal weather · 86/100 Typical: 58° / 33°F · 22% rain
13% slower times (5K)past finishers
Longmont, CO
Ideal weather · 87/100 Typical: 58° / 32°F · 18% rain
14% faster times (5K)past finishers
Grand Junction, CO
Ideal weather · 86/100 Typical: 54° / 31°F · 14% rain
20% slower times (5K)past finishers