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 8647 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 2026
May
9
Saturday

Boney Mountain Trail Run

Trail Run 7 km 13 mi
May
9
Saturday

Yosemite Half Marathon

13 mi
May
10
Sunday

Leavenworth Mai Blumenlauf

5 km 10 km 13 mi
May
16
Saturday

Conquer The Beast

4 mi
May
16
Saturday

Veterans Connected 10k

5 km 10 km
May
16-17
Sa - Su

Austin Spartan Event Weekend

Obstacle Run 5 km 10 km
May
16-17
Sa - Su

Big Bear Spartan Trifecta Weekend

Obstacle Run 5 km 10 km 21 km
May
16
Saturday

Run Against ALS 5K

5 km
May
16
Saturday

Race to The Tower Trail Run

Trail Run 5 km 10 km 15 km 20 km
May
16
Saturday

Napa Wilderness Trail Runs

Trail Run 10 km 21 km 30 km 50 km
May
16
Saturday

Iron Will Backroads

Trail Run 50 km 100 km 100 mi
May
16
Saturday

Rumble on the Ridge

Backyard Ultra
May
16-17
Sa - Su

Cleveland Spartan Trifecta Weekend

Obstacle Run 5 km 10 km 21 km 50 km
May
16
Saturday

Butterfield Backyard Ultra

Backyard Ultra 6 hr 12 hr
May
16
Saturday

Run for Amma

Trail Run 10 km 30 km 50 km
May
16-17
Sa - Su

Agape 100k + 50k

Trail Run 50 km 100 km
May
16
Saturday

Rim Rock 50 Mile Trail Challenge

Trail Run 50 mi
May
16
Saturday

Whitefish Marathon

5 km 13 mi 26 mi
May
16
Saturday

Tackle The Tar

Obstacle Run 5 km
May
17
Sunday

Armadillo Trail Run

Trail Run 10 km
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