California Half Marathon Calendar 2025-2026

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Explore the best half marathons in California for 2025-2026! Our updated list features 307 exciting races across the region. Find your next race in California below and join the running community at these great events!

January 2026
Jan
24-25
Sa - Su

Socal Spartan Event Weekend

Obstacle Run 5 km 10 km 21 km
Jan
24
Saturday

Folsom Lake Sweetwater Trail Run

Trail Run 5 km 10 km ... 26 mi 50 km
February 2026
Feb
1
Sunday

Surf City Marathon

5 km 13 mi 26 mi
Feb
7
Saturday

Mt. Umunhum Trail Conquest - Winter

Trail Run 5 km 7 mi ... 26 mi 50 km
Feb
14
Saturday

The Ranch 50K

Trail Run 13 mi 50 km
Feb
21
Saturday

Fourmidable

Trail Run 13 km 13 mi 35 km 50 km
March 2026
Mar
22
Sunday

Bakersfield Marathon

6 km 10 km 13 mi 26 mi
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