Half Marathons in California
From first-timer-friendly flats to trails worth traveling for, find a California half marathon that fits your goals and your sense of adventure.
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upcoming races
372 races
Rocky Ridge · san Ramon, California
Jurassic Jaunt – 5K, 10K, 10M, and Half Marathon · Long Beach, California
Bayside Saved by the Bell 5K, 10K & Half Marathon · Canoga Park, California
Run for Coffee 5k / 10k / 13.1 - Roseville · Rocklin, California
Rocky Ridge Trail Half Marathon · San Ramon, California
Alameda Island Running Festival · Alameda, California
La Noche de las Brujas Run -SummerWeen Series 5K 10K Half by Califlow Runs · Long Beach, California
Big Sur Trail Marathon · Big Sur, California
Hot Pursuit 5k, 10k, 15k, Half Marathon · long beach, California
Oktoberfest Run 5K/10K/13.1 SAN FRANCISCO · San Francisco, California
Oktoberfest Run 5K/10K/13.1 SAN DIEGO · San Diego, California
Oktoberfest Run 5K/10K/13.1 LOS ANGELES · Los Angeles, California
Oktoberfest Run 5K/10K/13.1 SACRAMENTO · Sacramento, California
Run for Donuts 5K/10K/13.1 SAN DIEGO · San Diego, California
Run for Donuts 5K/10K/13.1 SAN FRANCISCO · San Francisco, California
Run for Donuts 5K/10K/13.1 LOS ANGELES · Los Angeles, California
Run for Donuts 5K/10K/13.1 SACRAMENTO · Sacramento, California
Urban Cow Half Marathon · Sacramento, California
Lake Merced ½ Marathon and 4.5 Mile Run · San Francisco, California
Auburn Half Marathon · Auburn, California
The Retro Run – 5K, 10k, 10m, and Half Marathon · Long Beach, California
Spartan Trail - San Jose Trail Challenge · Saratoga, California
Take Me to Your Pizza : Alien Dash 5K. 10K. Half Marathon Sponsored by Domino's Pizza · Long Beach, California
SGRAIL Marin - Triathlon & Trail Half Marathon · San Rafael, California
Tehachapi Summit Challenge - Weekend on the Rocks · Tehachapi, California
Pacific Beach Half Marathon · San Diego, California
Pacific Beach Half Marathon · San Diego, California
Mean Girls 5K, 10K & Half Marathon · Canoga Park, California
Star City San Bruno Mountain Half Marathon · Brisbane, California
Haunted Heroes 5k, 10k, 15k, Half Marathon · long beach, California
Rock 'n' Roll San Jose · San Jose, California
Judgment Day Half Marathon, 10K & 5K Run/Walk · Bakersfield, California
Peace Officer Memorial Run · Modesto, California
Napa Half Marathon · Napa, California
Hallo-Thanks-Mas Dash – 5K, 10K, and Half Marathon · San Diego, California
Redding Breakfast Lions Turtle Bay Run 2026 · Redding, California
Never Say Die Run 5K. 10K. Half Marathon An 80s Adventure Movie Inspired Race · Long Beach, California
Bagel Run 5K/10K/13.1 SAN FRANCISCO · San Mateo, California
Sunset & Cider Trail Races · Auburn, California
Bagel Run 5K/10K/13.1 LOS ANGELES · Los Angeles, California
Bagel Run 5K/10K/13.1 SACRAMENTO · Sacramento, California
Bagel Run 5K/10K/13.1 SAN DIEGO · San Diego, California
Reservoir Dogs Trail Run · Orinda, California
2026 2XU Long Beach Marathon & Half Marathon · Long Beach, California
Long Beach Marathon · Long Beach, California
2026 Humboldt Redwoods Marathon, Half Marathon, 5K · Weott, California
Clo Cow Half Marathon · Petaluma, California
Bizz Johnson · Susanville, California
Champion Mine Trail Race · Nevada City, California
Fredrick Michael Gibson Half Marathon · Simi Valley, California
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