3 events in Humboldt County, California

From big races to Saturday morning group runs—find 5k events and connect with the local endurance sports community.

• 2026 Humboldt Redwoods Marathon, Half Marathon, 5K [redwoodsmarathon.com] [Register at runsignup.com]
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  Sun, Oct 11, 2026 at 8:30 AM

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  We'll forgive you if you have trouble concentrating on the road ahead of you while running The Humboldt Redwoods Marathon, half or 5K. After all, you'll probably be looking up at the old-growth...

  We'll forgive you if you have trouble concentrating on the road ahead of you while running The Humboldt Redwoods Marathon, half or 5K. After all, you'll probably be looking up at the old-growth redwood trees which tower over the course! This race is in Humboldt Redwoods State Park and the Half Marathon follows the second half of the iconic Avenue of the Giants Marathon course.

  All courses are USATF Certified. The Marathon is a Boston qualifier. The race starts and finishes at the Dyerville Bridge.

  3.1 Miles 5k 13.1 Miles 26.2 Miles Half Marathon Run

  Redwood Highway, Humboldt County, California, 95571, United States
  OpenStreetMap Google Maps

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