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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 Defiance, MO
Cottleville, MO7 mi away
Ideal weather · 95/100 Typical: 63° / 41°F · 27% rain
Fenton, MO22 mi away
Ideal weather · 93/100 Typical: 60° / 37°F · 22% rain
St. Louis, MO13 mi away
Ideal weather · 89/100 Typical: 57° / 35°F · 24% rain
Kirkwood, MO22 mi away
Good weather · 82/100 Typical: 51° / 32°F · 25% rain
Chesterfield, MO14 mi away
Good weather · 82/100 Typical: 51° / 32°F · 25% rain
Chesterfield, MO8 mi away
Good weather · 82/100 Typical: 51° / 32°F · 25% rain
Grover, MO11 mi away
Good weather · 82/100 Typical: 51° / 32°F · 25% rain
Maryland Heights, MO20 mi away
Ideal weather · 88/100 Typical: 50° / 31°F · 27% rain
8% slower times (5K)past finishers
Defiance, MO0 mi away
Good weather · 79/100 Typical: 46° / 28°F · 19% rain
Defiance, MO0 mi away
Ideal weather · 87/100 Typical: 46° / 28°F · 19% rain
7% faster times (trail 8K)past finishers
Saint Charles, MO23 mi away
Good weather · 71/100 Typical: 43° / 26°F · 27% rain
St Peters, MO14 mi away
Good weather · 71/100 Typical: 43° / 26°F · 27% rain
Foristell, MO17 mi away
Ideal weather · 86/100 Typical: 40° / 23°F · 20% rain
Saint Louis, MO18 mi away
Good weather · 78/100 Typical: 41° / 24°F · 25% rain
Maryland Heights, MO20 mi away
Good weather · 78/100 Typical: 41° / 24°F · 25% rain
7% slower times (5K)past finishers
Foristell, MO11 mi away
Fair weather · 67/100 Typical: 39° / 21°F · 22% rain
11% faster times (trail 15K)past finishers
St. Louis, MO20 mi away
Good weather · 77/100 Typical: 42° / 22°F · 23% rain
6% slower times (5K)past finishers
Glencoe, MO9 mi away
Good weather · 77/100 Typical: 42° / 22°F · 23% rain
92% slower times (5K)past finishers
Maryland Heights, MO20 mi away
Good weather · 73/100 Typical: 46° / 25°F · 26% rain
Chesterfield, MO8 mi awayRegistration opens Nov 25, 2026
Ideal weather · 85/100 Typical: 57° / 35°F · 32% rain
Maryland Heights, MO20 mi away
Ideal weather · 93/100 Typical: 57° / 35°F · 32% rain