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 9213 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

May 2026
May
17
Sunday

NYPD Memorial 5K Run/Walk

5 km
May
17
Sunday

Birch Family Services 5K Forward

5 km
May
23-24
Sa - Su

Nanny Goat

Trail Run 6 hr 12 hr 100 mi 24 hr
May
23-24
Sa - Su

Tough Mudder - Philly

Obstacle Run 5 km 15 km
June 2026
Jun
20
Saturday

Webster Trail Classic

Trail Run 3 mi 10 mi
July 2026
Jul
25
Saturday

Elkhorn Crest 50

Trail Run 50 km 50 mi
August 2026
Aug
30
Sunday

BRA Run - Los Angeles

5 km 13 km
October 2026
Oct
18
Sunday

Beverly Hills Run of the Stars

5 km
Oct
19
Monday

Charlottesville Fall Classic Half Marathon

10 km 13 mi
November 2026
Nov
7
Saturday

Saddleback Marathon

Trail Run 10 km 13 mi 26 mi
Nov
26
Thursday

Plymouth Rock n Run

5 km 10 km
July 2029
Jul
24
Tuesday

Pickle Events Run

5 km 10 km
October 2120
Oct
31
Thursday

Fantastic Fake 5K

5 km 8 km
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