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 Hartford, WI
Cedarburg, WI17 mi awayRegistration opens Feb 1, 2027
Good weather · 75/100 Typical: 55° / 36°F · 41% rain
Cedarburg, WI17 mi away
Good weather · 83/100 Typical: 70° / 51°F · 39% rain
6% faster times (half)past finishers
Hartford, WI0 mi awayRegistration opens Apr 30, 2027
Ideal weather · 88/100 Typical: 73° / 52°F · 39% rain
17% faster times (5K)past finishers
Brookfield, WI21 mi awayRegistration opens Mar 1, 2027
Ideal weather · 88/100 Typical: 73° / 53°F · 38% rain
14% faster times (5K)past finishers
Wauwatosa, WI25 mi awayRegistration opens Apr 19, 2027
Good weather · 80/100 Typical: 82° / 63°F · 38% rain
Jackson, WI11 mi away
Fair weather · 67/100 Typical: 79° / 62°F · 38% rain
22% faster times (5K)past finishers
Glendale, WI25 mi awayRegistration opens Jun 9, 2027
Fair weather · 55/100 Typical: 80° / 62°F · 40% rain
26% faster times (5K)past finishers
Menomonee Falls, WI17 mi awayRegistration opens Nov 12, 2026
Harsh weather · 33/100 Typical: 80° / 62°F · 41% rain
Oconomowoc, WI15 mi away
Fair weather · 61/100 Typical: 80° / 60°F · 35% rain
6% faster times (half)past finishers
Kewaskum, WI17 mi away
Ideal weather · 85/100 Typical: 73° / 55°F · 29% rain
Glendale, WI25 mi awayRegistration opens Jun 18, 2027
Good weather · 82/100 Typical: 71° / 52°F · 36% rain
11% faster times (5K)past finishers
Waukesha, WI22 mi away
Ideal weather · 86/100 Typical: 60° / 42°F · 34% rain
14% faster times (5K)past finishers