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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42 races within 25 mi of O'Fallon, IL
Belleville, IL10 mi away
Good weather · 77/100 Typical: 54° / 31°F · 30% rain
St Louis, MO15 mi away
Ideal weather · 86/100 Typical: 54° / 32°F · 30% rain
6% slower times (5K)past finishers
Glen Carbon, IL11 mi away
Good weather · 80/100 Typical: 59° / 38°F · 39% rain
St. Louis, MO19 mi away
Ideal weather · 92/100 Typical: 65° / 42°F · 34% rain
6% faster times (5K)past finishers
Saint Louis, MO21 mi away
Ideal weather · 92/100 Typical: 68° / 44°F · 36% rain
St Louis, MO15 mi away
Good weather · 78/100 Typical: 71° / 51°F · 52% rain
Saint Louis, MO23 mi away
Ideal weather · 86/100 Typical: 74° / 54°F · 46% rain
Belleville, IL10 mi away
Fair weather · 59/100 Typical: 82° / 63°F · 41% rain
19% slower times (5K)past finishers
Collinsville, IL7 mi awayRegistration opens Feb 27, 2027
Fair weather · 59/100 Typical: 82° / 63°F · 41% rain
St. Louis, MO23 mi away
Harsh weather · 25/100 Typical: 90° / 68°F · 43% rain
Belleville, IL10 mi away
Fair weather · 64/100 Typical: 85° / 63°F · 33% rain
19% slower times (5K)past finishers
St. Louis, MO19 mi away
Good weather · 84/100 Typical: 78° / 54°F · 22% rain