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Running Calendar near Clayton 2026-2027

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Explore the top running races near Clayton for 2026-2027! We've gathered 179 exciting races in the area. Check out our detailed list below to find your next local race.

Half Marathons Marathons Trail Runs Triathlons
September 2026
Sep
9
We

St. Louis Sunrise Wish Run

5 km 10 km Half Marathon 50 km
Sep
12
Sa

Northside Trap Run

5 km
Sep
12
Sa

Holy Trinity Catholic Church Titan Trot 5K

5 km
Sep
12
Sa

Forest Park Cross Country Festival

Trail Run 5 km
Sep
12
Sa

Legacy of Patriots Miles of Memories 5K

5 km
Monthly updates for Clayton

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Sep
12
Sa

Dash for Donuts 7K

5 km 7 km
Sep
12
Sa

Kirkwood Greentree Rotary Ramble

5 km 10 km
Sep
12
Sa

9/11 Heroes Run - St. Louis

5 km
Sep
13
Su

The Great Chase

6 mi
Sep
13
Su

Lap the Lake Race Series

5 km 10 mi Half Marathon
Sep
13
Su

Dogtown Doggy Dash

5 km
Sep
13
Su

Millstadt Parks Biathlon

Duathlon Individual Biathlon 5 22 mi Team Biathlon - Male 5 22 mi Team Biathlon - Female 5 22 mi Team Biathlon - Co-Ed 5 22 mi
Sep
13
Su

Walter's Walk 5K

5 km
Sep
13
Su

When the Smoke Clears Dontea's 5K Run/Walk

5 km
Sep
16
We

Solidarity Sidekick down Route 66 - Old Chain of Rocks Bridge

7 km
Solidarity Sidekick down Route 66 - Old Chain of Rocks Bridge Celebrate the Illinois series finale with a 6.6 km sunset run or walk at the historic Old Chain of Rocks Bridge to support ALS awareness.
Sep
19
Sa

Italian Fest 5K

5 km
Sep
19-26
Sa

Run for the Hills - St. Louis

3 mi
Sep
19
Sa

Light The Darkness 5K & 1 Mile Glow Run

5 km
Sep
19
Sa

Brentwood Community 5K

5 km
Sep
19
Sa

Alton Miles for Meso 5K Race

3 km 5 km
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