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Running Calendar near O'Fallon 2025-2026

Explore the top running races near O'Fallon for 2025-2026! We've gathered 73 exciting races in the area. Check out our detailed list below to find your next local race.

Half Marathons Marathons Trail Runs Triathlons
October 2025
Oct
12
Sunday

Families Run for Ovarian Cancer ROC Star 5k

5 km
Oct
18-19
Sa - Su

The Great St. Louis Halloween Race

5 km 10 km Half Marathon
Oct
18
Saturday

Trinity Christian Academy 5k

5 km
Oct
18
Saturday

Minnie Ha Ha 12 Hour Run

Backyard Ultra 6 hr 12 hr
Oct
18
Saturday

Gumbo Flats Pumpkin Run

5 km 10 km
Oct
18
Saturday

UMSL 5K Run/Walk

5 km
Oct
19
Sunday

City Sprint 5k

5 km
Oct
24
Friday

Moonlight Howl 5K

5 km
Oct
24
Friday

Wildwood Shivering Shadows 7K

7 km
Oct
25
Saturday

The Innsbrook Half Marathon

6 mi 13 mi
Oct
25
Saturday

Babler Bongo 15K Trail Race

Trail Run 15 km
Oct
25
Saturday

Hot Cider Hustle - St. Louis

5 km 10 km
Oct
25
Saturday

Run 4 Impact 5K Trail Run/Walk

Trail Run 5 km
Oct
26
Sunday

Spooky Sprint- St. Louis

5 km 10 km 13 km
November 2025
Nov
1
Saturday

Grace's Place Rock the Block Race

17 mi
Nov
1-2
Sa - Su

The Skippo Trail Race

Trail Run 10 km Half Marathon 30 km 40 km
Nov
1
Saturday

Coyote Crawl 5k and Head for the Hills 10k

5 km 10 km
Nov
1
Saturday

Run S'more for Hope

5 km
Nov
1
Saturday

Junior League of Saint Louis Cinnamon Roll 5K

5 km
Nov
2
Sunday

The Whiskey Run - St. Louis / St. Charles

Trail Run 5 km 10 km Half Marathon
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