Marathons in California — 2026

There are 24 marathons in California scheduled for 2026. The next is the LARPD Marathon On The Move Trail Challenge in Livermore on September 7. California marathons run primarily September through October.

LARPD Marathon On The Move Trail Challenge

Mon, Sep 7 · Livermore, CA Livermore

LARPD Marathon On The Move Trail Challenge

From $7 Closed

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The Running Fence Run: A Run of Freedom- Celebrating Christo's 1976 "Running Fence” art project

Sat, Sep 12 · Bloomfield, CA Bloomfield

September 2026- Running Fence Run - 5KSeptember 2026- Running Fence Run - 10KSeptember 2026- Running Fence Run - Half Marathon +1

From $45 Open Closing Soon

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Shaver Lake Mile High Triathlon

Sun, Sep 13 · Shaver Lake, CA Shaver Lake

Sprint AquathlonVirtual Aquathlon5k Run +18

From $55 Open Closing Soon

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Santa Cruz Triathlon

Sun, Sep 27 · Santa Cruz, CA Santa Cruz

Sprint AquathlonSprint RelaySprint Distance +4

From $65 Open Closing Soon 100 spots left

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Bike The Bay The TACO Way 2026!

Sat, Oct 3 · San Diego, CA San Diego

Bike The Bay The TACO Way 2026

From $50 Open

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2026 Humboldt Redwoods Marathon, Half Marathon, 5K

Sun, Oct 11 · Weott, CA Weott

5K Run1/2 MarathonMarathon

From $40 Open

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Lake Evans Triathlon, 5k & 10k

Sun, Oct 18 · Bakersfield, CA Bakersfield

Virtual AquathlonSprint Aquathlon5k Run +19

From $40 Open

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OC United 2026 Pumpkin Run and Ride

Sat, Oct 24 · Fullerton, CA Fullerton

Pumpkin Run/Walk 5K (General Public)Pumpkin Run 5K - FSD Students, Families & StaffTour de Fullerton - EASY (10 + optional 6 mile road bike ride) +3

From $20 Closed

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Two Cities Marathon

Sun, Nov 1 · Fresno, CA Fresno

Kaiser Permanente 5k Gavin Gladding Run/WalkKaiser Permanente 10k Run/WalkJD Food Half Marathon +2

From $45 Open

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2026 Morro Bay Triathlon

Sun, Nov 1 · Morro Bay, CA Morro Bay

5k RunSprint Relay TeamSprint +10

From $50 Open Closing Soon

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2026 Kaiser Permanente Get Fit Festival

Sat, Nov 7 · Irvine, CA Irvine

5K Run/WalkBike Tour36 Mile Team Relay Challenge

From $35 Open

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Bayshore Sprint and 70.4

Sat, Nov 7 · Long Beach, CA Long Beach

Bayshore SprintBayshore 70.4

From $165 Open

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City of Lincoln Huffin' for the Stuffin' Turkey Trot

Thu, Nov 26 · Lincoln, CA Lincoln

Fun Run 5KKids Donut Dash (Ages 4-7)

From $8 Closed 61 spots left

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The Redding Marathon Events

Sun, Jan 17 · Redding, CA Redding

Sundial 5kRedding MarathonRedding Marathon Relay

From $20 Open

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Ventura Marathon

Sun, Feb 21 · Ventura, CA Ventura

1/2 Marathon - VIP1/2 Marathon1/2 Marathon - Deferred from 2026 +5

From $110 Open 20 spots left

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SOCAL River Marathon - 26.2 - 13.1 - 10K - 5K

Sat, Feb 27 · Huntington Beach, CA Huntington Beach

5K5K10K +12

From $40 Open

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2027 SFA Los Angeles Marathon Team

Fri, Mar 5 · Los Angeles, CA Los Angeles

2027 SFA Los Angeles Marathon Team

Closed

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Modesto Marathon

Sun, Apr 4 · Modesto, CA Modesto

5K5KAssisted 5K +21

From $45 Open

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Mountains 2 Beach Marathon and Half

Sat, Apr 17 · Ventura, CA Ventura

Kids 1K Fun RunKids 1K Fun Run5k +13

From $25.99 Open 85 spots left

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The Hoag OC Marathon Running Festival

Sat, May 1 · Costa Mesa, CA Costa Mesa

5K Run5K Walk5K Run +35

From $0 Open Closing Soon

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2027 Avenue of the Giants Marathon

Sun, May 2 · Arcata, CA Arcata

Avenue of the Giants 10kAvenue of the Giants 10kAvenue of the Giants 1/2 Marathon +3

From $60 Open

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Shadow of the Giants 50k & 20k Run

Sat, Jun 5 · Fish Camp, CA Fish Camp

20k20K Early Start20k +3

From $80 Open 30 spots left

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Beer City Half™ Alameda

Sat, Jul 10 · Alameda, CA Alameda

5k5k10k +12

From $0 Closed

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Keyesville Classic 2027

Sat, Oct 16 · Lake Isabella, CA Lake Isabella

Sprint Lap Time Trial🏃 Keyesville Trail 5K RunLite XC +4

From $20 Open 80 spots left

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