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Half Marathons found in California in August

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Half Marathons in California in August 2025

Find A Race is the US's favourite event listings site. Check out our list of August 2025 Half Marathons in California below.

Race Calendar: Half Marathons found in August

πŸš€Boosted

Half-Marathon Training for Fun & Fitness

Grass Valley, California
20 Jul 25 - 05 Oct 25
$36.55
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Howl at the Moon – 5K, 10K, 10M, and Half Marathon

Long Beach, California
10 Aug 25
$31.21 - $46.05
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Pinkathon 2025 Virtual and In-Person Challenge for Breast Cancer!

Any Place in the World!, California
01 May 25 - 31 Oct 25
Free - $27.50

Long Beach, CA Galloway Training Program

Long Beach, California
07 Jun 25 - 04 Oct 25
$100.00 - $120.00

Noyo Headlands Race

Fort Bragg, California
09 Aug 25
$10.80 - $72.60

SAR Wild Run

Shaver Lake, California
10 Aug 25
$60.05 - $97.15

Howl at the Moon – 5K, 10K, 10M, and Half Marathon

Long Beach, California
10 Aug 25
$31.21 - $46.05

Sundae Funday - Ice Cream Run 5K, 10K, and Half Marathon

Long Beach, California
10 Aug 25
$39.15 - $53.99

Redwood (Summer) Trail Run

Oakland, California
16 Aug 25
Free - $85.80

Beer City Halfβ„’ SLAM

Fremont, California
16 Aug 25
$27.50 - $109.65

The TRON Night Run: Neon Grid 5K, 10K & Half Marathon

Canoga Park, California
16 Aug 25
$32.79

Run for Mental Health 5K/10K/13.1 SAN FRANCISCO

San Francisco, California
16 Aug 25
$32.80 - $52.94

The Cookie Dash Run 5K/10K/13.1 SAN FRANCISCO

San Francisco, California
16 Aug 25
$32.80 - $52.94

One Love Run – 5K, 10K, 10M, and Half Marathon

Long Beach, California
23 Aug 25
$26.97 - $41.81

Californian Dreamin 5K, 10K, & Half Marathon

Long Beach, California
24 Aug 25
$32.79 - $42.33

Labor Day Run 5K/10K/13.1 SAN DIEGO

San Diego, California
30 Aug 25
$32.80 - $52.94

Sunrise Marathon 5K/10K/13.1 SAN DIEGO

San Diego, California
30 Aug 25
$32.80 - $52.94

Labor Day Run 5K/10K/13.1 SACRAMENTO

Sacramento, California
30 Aug 25
$32.80 - $52.94

Labor Day Run 5K/10K/13.1 SAN FRANCISCO

San Francisco, California
30 Aug 25
$32.80 - $52.94

Sunrise Marathon 5K/10K/13.1 SACRAMENTO

Sacramento, California
30 Aug 25
$32.80 - $52.94

Sunrise Marathon 5K/10K/13.1 SAN FRANCISCO

San Francisco, California
30 Aug 25
$32.80 - $52.94

SPASM Crystal Springs Trail Run

Woodside, California
31 Aug 25
Free - $85.80

Half-Marathon Training for Fun & Fitness

Grass Valley, California
20 Jul 25 - 05 Oct 25
$36.55

Endless Summer Shuffle – 5K, 10K, and Half Marathon

Santa Monica, California
09 Aug 25
$26.97 - $41.81

The Cookie Dash Run 5K/10K/13.1 LOS ANGELES

Los Angeles, California
16 Aug 25
$32.80 - $52.94

Run for Mental Health 5K/10K/13.1 SACRAMENTO

Sacramento, California
16 Aug 25
$32.80 - $52.94

The Cookie Dash Run 5K/10K/13.1 SACRAMENTO

Sacramento, California
16 Aug 25
$32.80 - $52.94

Run for Mental Health 5K/10K/13.1 LOS ANGELES

Los Angeles, California
16 Aug 25
$32.80 - $52.94

Sunrise Marathon 5K/10K/13.1 LOS ANGELES

Los Angeles, California
30 Aug 25
$32.80 - $52.94

Labor Day Run 5K/10K/13.1 LOS ANGELES

Los Angeles, California
30 Aug 25
$32.80 - $52.94
Showing 1-28 of 28 results