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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39 races within 25 mi of Windsor, CO
Fort Collins, CO8 mi away
Ideal weather · 86/100 Typical: 58° / 33°F · 22% rain
Fort Collins, CO12 mi away
Ideal weather · 86/100 Typical: 58° / 33°F · 22% rain
13% slower times (5K)past finishers
Loveland, CO19 mi away
Ideal weather · 86/100 Typical: 58° / 33°F · 22% rain
Longmont, CO25 mi away
Ideal weather · 87/100 Typical: 58° / 32°F · 18% rain
14% faster times (5K)past finishers
Loveland, CO19 mi away
Ideal weather · 85/100 Typical: 56° / 31°F · 20% rain
Loveland, CO19 mi away
Good weather · 82/100 Typical: 54° / 29°F · 20% rain
Fort Collins, CO11 mi away
Fair weather · 61/100 Typical: 51° / 28°F · 18% rain
Fort Collins, CO11 mi away
Fair weather · 60/100 Typical: 51° / 28°F · 18% rain
Fort Collins, CO12 mi away
Good weather · 79/100 Typical: 51° / 28°F · 18% rain
Loveland, CO19 mi away
Good weather · 76/100 Typical: 48° / 26°F · 19% rain
15% slower times (5K)past finishers
Johnstown, CO11 mi away
Good weather · 76/100 Typical: 48° / 26°F · 19% rain
24% slower times (5K)past finishers
Fort Collins, CO13 mi away
Good weather · 76/100 Typical: 48° / 26°F · 19% rain
Loveland, CO19 mi away
Good weather · 76/100 Typical: 48° / 26°F · 19% rain
Greeley, CO12 mi away
Good weather · 80/100 Typical: 49° / 27°F · 14% rain
19% slower times (5K)past finishers
Windsor, CO0 mi away
Good weather · 76/100 Typical: 48° / 26°F · 19% rain
13% slower times (5K)past finishers
Loveland, CO19 mi away
Good weather · 72/100 Typical: 44° / 24°F · 17% rain
7% faster times (5K)past finishers
Longmont, CO23 mi away
Tough weather · 51/100 Typical: 45° / 24°F · 18% rain
Fort Collins, CO12 mi away
Fair weather · 69/100 Typical: 42° / 23°F · 19% rain
5% faster times (5K)past finishers
Fort Collins, CO8 mi awayRegistration opens Nov 15, 2026
Fair weather · 65/100 Typical: 39° / 20°F · 19% rain
7% faster times (5K)past finishers
Lyons, CO23 mi away
Good weather · 73/100 Typical: 43° / 21°F · 27% rain