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 11301 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

January 2026
Jan
25
Sunday

La Llorona 10K Trail Run

Trail Run 10 km
Jan
25
Sunday

Arizona Rocks Half Marathon Trail Run

Trail Run 5 km 10 km 13 mi
Jan
25
Sunday

Town of Celebration Marathon

13 mi 26 mi
Jan
25
Sunday

Time Travel Half-Marathon - Fort Worth

5 km 10 km 13 mi
Jan
25
Sunday

Do It For Her 5K

5 km
Jan
25
Sunday

Time Travel Half-Marathon - Oklahoma City

5 km 10 km 13 mi
Jan
25
Sunday

Jeté

5 km
Jan
25
Sunday

This ain't your Mothers 50k

Trail Run 7 km 12 km 42 km 50 km
Jan
25
Sunday

Donut Give up 10k

5 km 10 km
Jan
26
Monday

Arrowhead 135

Trail Run 135 mi
Jan
30
Friday

Light up the Night Glow Run

5 km
Jan
30
Friday

Disneyland Half Marathon Weekend

5 km 10 km 13 mi 19 mi
Jan - Feb
30-1
Fr - Su

DONNA Marathon Weekend

5 km 21 km 42 km
Jan
31
Saturday

The Carpet Capital 10 Miler

5 km 10 mi
Jan
31
Saturday

F3 Lake Half Marathon

5 km 13 mi
Jan - Feb
31-1
Sa - Su

Pleasant Ridge Backyard Ultra

Backyard Ultra 4 mi
Jan
31
Saturday

Arches Ultra

Trail Run 9 km 21 km 50 km 50 mi
Jan
31
Saturday

Coo-Wah-Chobee 50k

Trail Run 5 km 25 km 50 km
Jan - Feb
31-1
Sa - Su

Forgotten Florida

Trail Run 8 mi 15 mi 50 mi 100 mi
Jan
31
Saturday

Devil's Shadow Winter Trail Races

Trail Run 5 mi 25 km 50 km
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