California Half Marathon Calendar 2025-2026

Header image

Explore the best half marathons in California for 2025-2026! Our updated list features 354 exciting races across the region. Find your next race in California below and join the running community at these great events!

August 2025
Aug
23
Saturday

Trail Run At Sly Park - Summer

Trail Run 5 km 10 km ... 26 mi 50 km
Aug
23
Saturday

One Love Unified Hearts

5 km 10 km 10 mi 13 mi
Aug
23
Saturday

Inside Trail - Santa Cruz Trail Run

Trail Run 10 km 13 mi 30 km
Aug
23
Saturday

Envirosports - Angel Island Half Marathon

Trail Run 10 km 13 mi
Aug
30
Saturday

Summer Day Half Marathon - Long Beach

5 km 10 km 15 km 13 mi
Aug
30
Saturday

The Best Races - Sacramento

5 km 10 km 13 mi
Aug
30
Saturday

The Best Races - San Francisco

5 km 10 km 13 mi
Aug
30
Saturday

The Best Races - Los Angeles

5 km 10 km 13 mi
Aug
30
Saturday

The Best Races - San Diego

5 km 10 km 13 mi
Aug
31
Sunday

Beach Day Half Marathon - Long Beach

5 km 10 km 15 km 13 mi
Aug
31
Sunday

Crystal Springs Trail Run

Trail Run 8 km 13 mi ... 26 mi 50 km
September 2025
Sep
1
Monday

Labor Day Half Marathon - Long Beach

5 km 10 km 15 km 13 mi
Sep
4-7
Th - Su

Disneyland Halloween Half Marathon Weekend

5 km 10 km 13 mi
Sep
6
Saturday

Mendocino Running Festival

Trail Run 10 km 13 mi 6 hr 12 hr
Sep
6
Saturday

Stevens Creek Striders Reservoir Run

Trail Run 2 mi 11 km 13 mi
Sep
7
Sunday

Surfers Point Marathon

5 km 10 km 13 mi 26 mi
Sep
7
Sunday

Diablo Trail Run

Trail Run 4 mi 10 mi ... 26 mi 50 km
Sep
7
Sunday

Berkeley Half

13 mi 26 mi
Sep
7
Sunday

Mammoth Bar Trail Runs

Trail Run 5 km 10 km 13 mi
Sep
7
Sunday

Hot to Trot Half Marathon - Riverside

5 km 10 km 15 km 13 mi
Articles
The Beauty of the Easy Run — Why slowing down might be the smartest thing you do for your running
Mizuno Wave Rider 28: Elevating the Legacy of a Running Icon
Garmin Forerunner Review: Garmin Forerunner Series
Stride with Confidence: A Comprehensive Guide to Saucony Running Shoes