California · Half Marathon

2026-2027 Half Marathons in California

Every upcoming Half Marathon in California, all 284 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.

284 upcoming half marathons · 84 with finish-time stats

5K Races 65610K Races 400Marathons 27Ultramarathons 31
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By the numbers

The Biggest and Longest-Running

The California races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.

Largest field4,760 finishersLa Jolla Half Marathon, 10K, & 5Kin the Half MarathonLongest-running37th year37th Annual Lopers Club Holiday Classic Half Marathon, 10K, and 5Kannual tradition

California Half Marathons by City

Long Beach 51Los Angeles 38San Diego 34Sacramento 29San Francisco 28Castro Valley 6Huntington Beach 5San Jose 4San Mateo 4Canoga Park 4Bakersfield 3Fremont 3Ventura 3Oakland 3Fresno 2Long beach 2Fountain Valley 2Davis 2Santa Monica 2Fort Bragg 2Alameda 2Malibu 1Van Nuys 1Clarksburg 1

Half Marathons in California by Month

October 2026 14November 2026 39December 2026 39January 2027 35February 2027 33March 2027 34April 2027 35May 2027 24June 2027 11July 2027 10August 2027 7

The Next Half Marathons in California

284 total
Sun, Oct 25, 2026Malibu Moves: Half Marathon, 10K, 5K, 1-Mi & 1K Malibu, CAHalf Marathon5K5 MilesFrom $179Details Sun, Oct 25, 2026Trick or Trot 5K, 10K, and Half Marathon Long Beach, CA5K10KHalf Marathon400 YardsFrom $55Details Sun, Oct 25, 2026Spooky Shuffle - 5k, 10k, Half Marathon Van Nuys, CA5K10KHalf MarathonRegistration closedFrom $45Details Fri, Oct 30, 2026DIA DE LOS MUERTOS HALF MARATHON & 5K RUN/WALK Bakersfield, CAHalf Marathon5K2 MilesFrom $92Details Sat, Oct 31, 2026ZombieRunner Halloween (Sold Out!) San Jose, CA5K10KHalf MarathonMarathonFrom $70Details Sat, Oct 31, 2026PB&J Fuel Run 5K/10K/13.1 LOS ANGELES Los Angeles, CA5K10KHalf Marathon1 MileFrom $60Register Sat, Oct 31, 2026The Long Beach Halloween Run 5K. 10K. Half Marathon Long Beach, CA5K10KHalf Marathon400 YardsFrom $65Details Sat, Oct 31, 2026PB&J Fuel Run 5K/10K/13.1 SACRAMENTO Sacramento, CA5K10KHalf Marathon1 MileRegistration closedFrom $60View race Sat, Oct 31, 2026PB&J Fuel Run 5K/10K/13.1 SAN DIEGO San Diego, CA5K10KHalf Marathon1 MileFrom $65Register Sat, Oct 31, 2026PB&J Fuel Run 5K/10K/13.1 SAN FRANCISCO San Francisco, CA5K10KHalf Marathon1 MileFrom $65Register Sat, Oct 31, 2026Halloween Trick or Trot Run 5K/10K/13.1 LOS ANGELES Los Angeles, CA5K10KHalf Marathon1 MileFrom $60Register Sat, Oct 31, 2026Halloween Trick or Trot Run 5K/10K/13.1 SACRAMENTO Sacramento, CA5K10KHalf Marathon1 MileRegistration closedFrom $60View race

How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Oct 25, 2026.

Common Questions About Running a Half Marathon in California

Which California cities have the most half marathons?

Long Beach (51), Los Angeles (38), San Diego (34), Sacramento (29) lead the state for Half Marathon races. Those give you the most dates to choose from if your schedule is tight.

When are most half marathons held in California?

November is the busiest month for Half Marathon races in California, with 39 of the 284, followed by December with 39. If you are flexible on the date, that is the quickest way to narrow things down.

Are California Half Marathon races beginner-friendly?

Yes, for the most part. Across the 80 Half Marathon races in California with published results, the typical median finish is around 2:17:25, which means half of every one of those fields came in slower than that. Recreational runners and walk-runners are the bulk of these fields, not the exception.

Are there trail Half Marathon races in California?

Yes, 21 races around California get you off the pavement: 16 are trail races, and 5 mix road and trail.