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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 45 exciting races in the area. Check out our detailed list below to find your next local race.

August 2025
Aug
2
Saturday

Hope 4 Healing 5K

5 km
Aug
3
Sunday

MTC Zilla Tri

Triathlon
Aug
8
Friday

Reagle Eagle Run 5K

5 km
Aug
9
Saturday

Drink MO Beer 10k

5 km 10 km
Aug
9
Saturday

Swifty Fun Run - St. Louis

5 km 10 km 13 mi
Aug
16
Saturday

Feed My Sheep Ministry

5 km
Aug
16
Saturday

Hecker Tiki Trot 5K

2 mi 5 km
Aug
22-24
Fr - Su

St. Paul Strassenlauf

Aug
23
Saturday

O'Town Hustle Triathlon

Triathlon
Aug
24
Sunday

Summer Sizzler - St. Louis

5 km 10 km 15 km
Aug
30
Saturday

The Labor Day Slay

Trail Run 5 km 10 km 13 mi
September 2025
Sep
1
Monday

JJK5K

5 km
Sep
6
Saturday

Northside Trap Run

5 km
Sep
6
Saturday

CiderMan Triathlon

Triathlon
Sep
6
Saturday

Legacy of Patriots Miles of Memories 5k

5 km
Sep
13
Saturday

Holy Trinity Catholic Church Titan Trot 5K

5 km
Sep
14
Sunday

Millstadt Parks Biathlon

Duathlon
Sep
14
Sunday

Dogtown Doggy Dash

5 km
Sep
14
Sunday

Walter's Walk 5K

5 km
Sep
20
Saturday

Alton Miles for Meso 5K Race

3 km 5 km
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