1 event in Eureka, California

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

• Humboldt Bay Marathon [humboldtbaymarathon.com]
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  Sun, Aug 09, 2026 at 7:00 AM

  Description

  Marathon, half marathon and 5K races through scenic Humboldt Bay area with custom artwork medals and uniquely beautiful course.

  Half Marathon Marathon Run

  Summer Street, Eureka, California, 95502, United States
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