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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104 races within 25 mi of Eldorado Springs, CO
Good weather · 78/100 Typical: 49° / 26°F · 18% rain
Westminster, CO10 mi away
Good weather · 82/100 Typical: 45° / 24°F · 18% rain
5% faster times (half)past finishers
Longmont, CO23 mi away
Tough weather · 51/100 Typical: 45° / 24°F · 18% rain
Westminster, CO14 mi away
Good weather · 74/100 Typical: 45° / 24°F · 18% rain
4% slower times (5K)past finishers
Thornton, CO19 mi away
Good weather · 72/100 Typical: 44° / 24°F · 18% rain
6% slower times (5K)past finishers
Denver, CO23 mi away
Good weather · 70/100 Typical: 43° / 22°F · 17% rain
Arvada, CO7 mi away
Good weather · 71/100 Typical: 43° / 23°F · 20% rain
Denver, CO20 mi away
Fair weather · 69/100 Typical: 42° / 21°F · 18% rain
12% faster times (5K)past finishers
Lyons, CO21 mi awayRegistration opens Dec 11, 2026
Tough weather · 40/100 Typical: 27° / 9°F · 38% rain
Golden, CO15 mi away
Fair weather · 65/100 Typical: 40° / 19°F · 17% rain
18% faster times (mile)past finishers
Westminster, CO12 mi away
Fair weather · 66/100 Typical: 44° / 21°F · 26% rain
Lyons, CO22 mi away
Good weather · 73/100 Typical: 43° / 21°F · 27% rain