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
Oconomowoc, WI15 mi away
Good weather · 82/100 Typical: 53° / 35°F · 24% rain
8% faster times (5K)past finishers
Nashotah, WI14 mi away
Good weather · 81/100 Typical: 45° / 29°F · 21% rain
6% slower times (half)past finishers
Waukesha, WI23 mi away
Tough weather · 46/100 Typical: 45° / 29°F · 21% rain
Brown Deer, WI22 mi away
Good weather · 70/100 Typical: 42° / 28°F · 21% rain
30% slower times (5K)past finishers
Oconomowoc, WI15 mi away
Fair weather · 67/100 Typical: 40° / 25°F · 23% rain
13% faster times (5K)past finishers
Cedarburg, WI17 mi away
Fair weather · 65/100 Typical: 38° / 26°F · 22% rain
Thiensville, WI22 mi away
Fair weather · 66/100 Typical: 40° / 26°F · 24% rain
Watertown, WI18 mi away
Fair weather · 65/100 Typical: 38° / 24°F · 23% rain
8% slower times (5K)past finishers
Oconomowoc, WI15 mi away
Fair weather · 59/100 Typical: 34° / 19°F · 22% rain
25% faster times (5K)past finishers
Waukesha, WI22 mi away
Fair weather · 65/100 Typical: 34° / 20°F · 22% rain
10% faster times (half)past finishers
Oconomowoc, WI15 mi away
Tough weather · 52/100 Typical: 29° / 14°F · 21% rain
5% faster times (5K)past finishers
Menomonee Falls, WI17 mi away
Tough weather · 46/100 Typical: 28° / 11°F · 22% rain
8% faster times (5K)past finishers
Wauwatosa, WI25 mi away
Tough weather · 46/100 Typical: 28° / 11°F · 22% rain
Oconomowoc, WI15 mi away
Fair weather · 67/100 Typical: 45° / 26°F · 26% rain
11% faster times (5K)past finishers
Watertown, WI22 mi awayRegistration opens Dec 19, 2026
Fair weather · 67/100 Typical: 45° / 26°F · 26% rain
Waukesha, WI22 mi away
Good weather · 77/100 Typical: 45° / 29°F · 26% rain
7% faster times (5K)past finishers