Race catalog · Updated nightly
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Upcoming running, cycling, triathlon and ultra races, updated nightly from RunSignup, BikeReg and ACTIVE. Missing a race? Submit it
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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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91 races within 25 mi of Lone Tree, CO
Centennial, CO10 mi away
Ideal weather · 87/100 Typical: 56° / 29°F · 22% rain
Centennial, CO10 mi away
Ideal weather · 87/100 Typical: 56° / 29°F · 22% rain
Denver, CO17 mi away
Good weather · 77/100 Typical: 55° / 29°F · 29% rain
7% faster times (5K)past finishers
Centennial, CO10 mi away
Ideal weather · 88/100 Typical: 57° / 30°F · 22% rain
Centennial, CO10 mi away
Ideal weather · 88/100 Typical: 57° / 30°F · 22% rain
Denver, CO13 mi away
Good weather · 80/100 Typical: 57° / 29°F · 22% rain
4% slower times (5K)past finishers
Englewood, CO5 mi away
Ideal weather · 89/100 Typical: 57° / 29°F · 22% rain
Centennial, CO10 mi away
Ideal weather · 91/100 Typical: 61° / 32°F · 22% rain
Centennial, CO10 mi away
Ideal weather · 91/100 Typical: 61° / 32°F · 22% rain
Littleton, CO8 mi away
Ideal weather · 88/100 Typical: 58° / 29°F · 25% rain
Centennial, CO10 mi away
Ideal weather · 91/100 Typical: 64° / 36°F · 26% rain
Centennial, CO10 mi away
Ideal weather · 91/100 Typical: 64° / 36°F · 26% rain
Golden, CO22 mi away
Good weather · 81/100 Typical: 60° / 32°F · 32% rain
6% faster times (5K)past finishers
Denver, CO16 mi away
Ideal weather · 91/100 Typical: 63° / 35°F · 35% rain
5% slower times (5K)past finishers
Denver, CO13 mi away
Good weather · 82/100 Typical: 61° / 33°F · 32% rain
10% slower times (5K)past finishers
Centennial, CO10 mi away
Ideal weather · 90/100 Typical: 68° / 40°F · 34% rain
Denver, CO14 mi awayRegistration opens Jan 1, 2027
Ideal weather · 87/100 Typical: 66° / 37°F · 38% rain
6% slower times (5K)past finishers
Denver, CO16 mi away
Ideal weather · 90/100 Typical: 68° / 40°F · 40% rain
4% slower times (half)past finishers
Centennial, CO10 mi away
Good weather · 84/100 Typical: 78° / 48°F · 35% rain
Centennial, CO10 mi away
Fair weather · 69/100 Typical: 87° / 56°F · 32% rain