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California Triathlon Calendar 2025-2026

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Explore the best triathlons in California for 2025-2026! Our updated list features 775 exciting races across the region. Find your next race in California below and join the running community at these great events!

July 2026
Jul
4
Saturday

Run Like a Hero 5k

Chico, California
5 km
Jul
4
Saturday

IRVINE 4th of July-Red, White, & Blue 5k

Irvine, California
5 km
Jul
4
Saturday

Freedom Run on the Ranch

Ladera Ranch, California
5 km 10 km
Jul
4
Saturday

Mount Shasta Walk/Run

Mount Shasta, California
2 mi 5 mi
Jul
18-19
Sa - Su

Napa to Sonoma Half Marathon

Sonoma, California
5 km 21 km
Jul
25
Saturday

Lost Sierra Endurance Race

Downieville, California
Trail Run 25 km 50 km 100 km
Jul
27-29
Mo - We

Badwater 135

Lone Pine, California
Trail Run 135 mi
August 2026
Aug
30
Sunday

BRA Run - Los Angeles

Venice, California
5 km 13 km
October 2026
Oct
3
Saturday

Signal Peak Trail Runs

Emigrant Gap, California
Trail Run 24 mi 50 km
Oct
18
Sunday

Beverly Hills Run of the Stars

Beverly Hills, California
5 km
November 2026
Nov
7
Saturday

Saddleback Marathon

Silverado, California
Trail Run 10 km 21 km 42 km
Nov
26
Thursday

Plymouth Rock n Run

Anaheim, California
5 km 10 km
March 2027
Mar
1
Monday

Screenland 5K

Culver City, California
5 km
Mar
21-22
Su - Mo

Bakersfield Marathon

Bakersfield, California
6 km 10 km 13 mi 26 mi
January 2030
Jan
1
Tuesday

Gemini Timing Demo

Menifee, California
5 km
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