Triathlon Calendar United States 2025-2026

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Explore the best triathlons in the United States for 2025-2026! Our updated list features 8605 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

April 2026
Apr
18
Saturday

Happy Trails Marathon

Trail Run 13 mi 26 mi
Apr
18
Saturday

Run to Remember - Sykesville

Trail Run 5 mi 25 km 50 km 8 hr
Apr
18
Saturday

Newport Rhode Races

5 km 13 mi 26 mi
Apr
18
Saturday

Naples Half Marathon | Paradise Coast

5 km 13 mi
Apr
18
Saturday

Leona Divide

Trail Run 30 km 50 km ... 100 km 100 mi
Apr
18
Saturday

Flora-Bama's Mullet Man Triathlon

Triathlon
Apr
18
Saturday

Skyline Half Marathon

5 km 10 km 13 mi
Apr
18
Saturday

Norwegian Foot March & Trail Run

Trail Run 5 km 30 km
Apr
18
Saturday

Run the River - Kennewick, WA

5 km 13 mi 26 mi
Apr
18
Saturday

Race to Robie Creek

13 mi
Apr
18
Saturday

The VUE

Trail Run 4 mi 12 mi ... 34 mi 50 mi
Apr
18
Saturday

World's Fair Ultras

Backyard Ultra 3 hr 50 km ... 12 hr 24 hr
Apr
18-19
Sa - Su

Blue Ridge Marathon

5 km 10 km 13 mi 26 mi
Apr
18-19
Sa - Su

Mountains 2 Beach Marathon

5 km 10 km 13 mi 26 mi
Apr
18
Saturday

Spitfire Ultra Trail Challenge

Trail Run 5 km 12 km 30 km 55 km
Apr
18
Saturday

Ironman Texas

Triathlon
Apr
18
Saturday

Ocracoke Island Weekend Runfest Half Marathon

5 km 10 km 13 mi
Apr
18
Saturday

PRC Pinwheel 5K Run

5 km
Apr
18
Saturday

Reedy River Run

5 km 10 km
Apr
18
Saturday

SMHS Makin' Hay 10K

5 km 10 km
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