Running calendar United States 2025-2026

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Explore the best running races in the United States for 2025-2026! Our updated list features 9325 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

Half Marathons Marathons Obstacle Runs Trail Runs Triathlons
May 2025
May
18
Sunday

Armadillo Trail Run

Trail Run 10 km
May
18
Sunday

Gorgonio View Trail Run

Trail Run 10 km
May
18
Sunday

First State Trail Race - Wilmington, DE

Trail Run 10 km 25 km 50 km
May
18
Sunday

Greater Kansas City Half Marathon

5 km 10 km 13 mi
May
18
Sunday

Biltmore Kiwanis Classic 15k

5 km 15 km
May
18
Sunday

Marine Corps Historic Half

13 mi
May
18
Sunday

Rhode Island Half Marathon

5 km 13 mi
May
18
Sunday

Rothrock Trail Challenge

Trail Run 11 mi 16 mi
May
18
Sunday

Capitol Hill Classic 10K

3 km 10 km
May
18
Sunday

Rappahannock Cellars 10k

5 km 10 km
May
18
Sunday

Reflection Run Washougal

5 km 10 km 12 mi 13 mi
May
18
Sunday

Armed Services Marathon

5 km 13 mi 26 mi
May
18
Sunday

Highball to Thurmond Ultra

Trail Run 50 km 50 mi
May
18-21
Su - We

Run Houston! Clear Lake 10K

5 km 10 km
May
18
Sunday

C'mon Armageddon

Trail Run 5 mi 10 mi 50 km
May
18
Sunday

Cal Tri Richmond

Triathlon
May
18
Sunday

Vale of Three Falls 5k | 10k | 15k

Trail Run 5 km 10 km 15 km
May
18
Sunday

Chicago Spring Half Marathon

10 km 21 km
May
18
Sunday

Mental Health Matters 5k

5 km
May
18
Sunday

Venice Beach Half Marathon

5 km 13 mi
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