Marathons in California — 2026

There are 29 marathons in California scheduled for 2026. The next is the Lake Evans Triathlon, 5K & 10K in Bakersfield on October 18. California marathons run primarily October.

2026 Humboldt Redwoods Marathon, Half Marathon, 5K

Sun, Oct 11 · Weott, CA Weott

5K Run1/2 MarathonMarathon

From $40 Closed

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Lake Evans Triathlon, 5K & 10K

Sun, Oct 18 · Bakersfield, CA Bakersfield

Virtual AquathlonSprint Aquathlon5K Run +19

From $40 Open Closing Soon

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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 $25 Open Closing Soon

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2026 First Responders 1M 5K 10K 13.1 26.2

Sun, Oct 25 · Los Angeles, CA Los Angeles

1 Mile5K10K +2

From $25 Open

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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 RunSprintSprint Relay Team +10

From $50 Open Closing Soon

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Mt. Tam Trail Run

Sat, Nov 7 · Stinson Beach, CA Stinson Beach

10KHalf Marathon30K +1

Closed

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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 Blackhorse Marathon in Honor of MG(R) Sunell

Fri, Dec 11 · Fort Irwin, CA Fort Irwin

5K1/2 MarathonThe Norwegian Foot March +1

From $15 Open

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Woodside Ramble

Sat, Dec 19 · Woodside, CA Woodside

10KHalf Marathon35K +1

Closed

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The Redding Marathon Events

Sun, Jan 17 · Redding, CA Redding

Sundial 5kRedding Marathon RelayRedding Marathon

From $20 Open

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Ventura Marathon

Sun, Feb 21 · Ventura, CA Ventura

1/2 Marathon1/2 Marathon - Deferred from 20261/2 Marathon - VIP +7

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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United Health Centers Foundation Fun Run

Sat, Mar 20 · Fresno, CA Fresno

2 Mile Walk2 Mile Walk5k Run +11

From $10 Open

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Release the Kraken 5K. 10K. 18 Miler & 50K

Sat, Apr 3 · Long Beach, CA Long Beach

5K10K18 Miler +1

From $40 Open

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Modesto Marathon

Sun, Apr 4 · Modesto, CA Modesto

Virtual 5K5KVirtual 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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Millerton Lake Crows Nest Triathlon, 5k & 10k

Sun, Apr 18 · Friant, CA Friant

5kVirtual 5kVirtual 5k +35

From $45 Closed

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Grapes of Wrath Triathlon, 5k & 10k

Sun, Apr 25 · Delano, CA Delano

5k Run5k Run10k Run +27

From $50 Closed

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The Hoag OC Marathon Running Festival

Sat, May 1 · Costa Mesa, CA Costa Mesa

5K Walk5K Walk5K Run +35

From $0 Open

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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

20K Early Start20k20k +3

From $80 Open 30 spots left

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Huntington Lake Triathlon, 5k & 10k

Sat, Jun 19 · Lakeshore, CA Lakeshore

Virtual 5kVirtual 5k5k+ Run +33

From $50 Closed

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Beer City Half™ Alameda

Sat, Jul 10 · Alameda, CA Alameda

5k5k10k +12

From $0 Open

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Shaver Lake Mile High Triathlon

Sun, Sep 12 · Shaver Lake, CA Shaver Lake

Virtual AquathlonVirtual AquathlonSprint Aquathlon +39

From $55 Open

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Chupacabra 5K. 10K. 18 Miler & 50K

Sat, Sep 18 · Long Beach, CA Long Beach

5K10K18 Miler +1

From $40 Open

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Keyesville Classic 2027

Sat, Oct 16 · Lake Isabella, CA Lake Isabella

🏃 Keyesville Trail 5K RunSprint Lap Time TrialXC Lite Course +5

From $20 Open 80 spots left

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