Discover the scenic beauty of Northern California with the Humboldt Bay Marathon in Eureka. This race takes you along a captivating coastal course where the rugged charm of Humboldt Bay meets the dynamic energy of a bustling urban backdrop. With a predominantly flat, fast-paced route interspersed with refreshing coastal breezes, the marathon offers a perfect blend of speed and natural wonder. Runners love the harmonious mix of city energy and serene waterfront vistas that define the experience.

Marathon and Half Marathon Courses are USATF Certified.

What Runners Love:

• Stunning Waterfront Scenery: Enjoy expansive views of the Pacific Ocean, rugged shorelines, and the natural splendor of Northern California.

• Fast and Efficient Course: A well‑maintained, flat route designed to maximize speed and performance while allowing you to soak in the views.

• Dynamic Urban-Coastal Fusion: The course seamlessly combines urban vibrancy with the tranquility of coastal landscapes for an invigorating run.

• Strong Local Support: Enthusiastic volunteers, well‑placed aid stations, and a spirited community create an uplifting race-day atmosphere.

Celebrate the best of Northern California by joining the Humboldt Bay Marathon in Eureka. Register today and enjoy a race that merges speed, scenic beauty, and urban-coastal charm into an unforgettable running adventure!

 

 

Сustom artwork on all of our medals and shirts

We have commissioned local artist (and runner!) Sara Starr to do the artwork for our shirts and medals. Read more...

 

 

Course Maps 

Marathon And Half (Note, this is the map for 2025 - The marathon and half marathon courses will be the same in 2026, but the 5K course will be changed)

Please support the following Sponsors for 2025

 

Our Title Sponsor 

Ghirardelli Associates

 

 

 

Fin-N-Feather	Ramone's Bakery & Cafe	Eureka Main Street	Suzie
Ciotti Yard Maintenance	Pivotal Connections	Maya Conrad Realtor	Humboldt Creamery
Maverick & Haywood	Adventure's Edge	Third Street Suites	Mr. Rooter Plumbing of Humboldt & Del Norte

 

                                       

Redwood Coast Mountain Bike Association

We are thrilled to work with a local nonprofit organization, Redwood Coast Mountain Bike Association for your timing needs. They bring experience timing bike and running events with new, state of the art equipment. Gun start, chip finish with at least one split for each distance.