Marathons in California — 2026

There are 23 marathons in California scheduled for 2026. The next is the Rodeo Valley Trail Run in Sausilto on August 1. California marathons run primarily August through June.

Davis Moonlight Run

Sat, Jul 18 · Davis, CA Davis

2K Run or WalkVirtual Participant5K Run or Walk +5

From $15 Open Closing Soon

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Rodeo Valley Trail Run

Sat, Aug 1 · Sausilto, CA Sausilto

8kHalf Marathon30K +1

Closed

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Sandman Tri

Sun, Aug 23 · Aptos, CA Aptos

Sandman DuathlonSandman TeamSandman Tri

From $70 Open Closing Soon 50 spots left

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Trail Challenge - The Dublin 26

Mon, Sep 7 · Dublin, CA Dublin

Run, Walk, or Hike 26 Miles!Bike 65 Miles

From $6 Open

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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

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Shaver Lake Mile High Triathlon

Sun, Sep 13 · Shaver Lake, CA Shaver Lake

Sprint AquathlonVirtual AquathlonVirtual 5K +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 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 Closing Soon

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Lake Evans Triathlon, 5k & 10k

Sun, Oct 18 · Bakersfield, CA Bakersfield

Sprint AquathlonVirtual AquathlonVirtual 5K +19

From $40 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 Closing Soon

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2026 Morro Bay Triathlon

Sun, Nov 1 · Morro Bay, CA Morro Bay

5k RunSprintSprint Relay Team +10

From $50 Open

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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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The Redding Marathon Events

Sun, Jan 17 · Redding, CA Redding

Sundial 5kRedding Marathon RelayRedding Marathon

From $20 Open Closing Soon

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Ventura Marathon

Sun, Feb 21 · Ventura, CA Ventura

1/2 Marathon - Deferred from 20261/2 Marathon1/2 Marathon - VIP +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 +11

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

5KVirtual 5K5K +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 Closed

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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

20k20k20K Early Start +3

From $80 Open 30 spots left

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