Join us in August for the Fifth Annual Humboldt Bay Marathon, Half Marathon, 5K and Marina Mile Races Sponsored by HPRC, the Humboldt Patient Resource Center.
This is a USATF Sanctioned Event!
How to enter the Humboldt Bay Marathon, Half Marathon and 5k
- Run 13.1mi
- Run 26.2mi
- Run 5km
- Run 1mi
Humboldt Bay Marathon, Half Marathon and 5k routes
The first 23 miles of the marathon course are almost perfectly flat and very close to sea level. Miles 24 and 25 take the course across Humboldt Bay via three low bridges. Each bridge rises no more than 35 feet above the water, so the climbs are not big, but we know that anything after 23 miles is a challenge. There's an aid station right before the first bridge and just after the last one. Mile 26 is partially downhill as it leaves the last bridge and cuts through Old Town Eureka ending just above sea level on the waterfront. The course starts and finishes at Madaket Plaza, 1st and C Streets in Eureka.
Runners will have a maximum of 6 hours 30 minutes to complete the course.
Half Marathon Course
The first 10 miles are almost completely flat and near sea level. Miles 11 and 12 cross Humboldt Bay over a series of three low bridges (max height 35 feet) and the last mile, is slightly downhill to finish on the Eureka Waterfront just above sea level. The race starts near Klopp Lake at the south end of I Street in the Arcata Marsh and finishes at the foot of C street on the Bay (Madaket plaza, Eureka Waterfront)
Runners will have a maximum of 4 hours 30 minutes to complete the course. A free shuttle bus will take half marathon entrants to the start area.
This 5k will go out the last 1.55 miles of the marathon course and return.
Questions & answers
Get answers from our team or a member of our dedicated community.
Humboldt Bay Marathon, Half Marathon and 5k weather forecast
Clear throughout the day.
Humboldt Bay Marathon, Half Marathon and 5k reviews
There are no reviews for this event yet. Raced here before? Be the first to review this event.
How was Humboldt Bay Marathon, Half Marathon and 5k?
You may also like
- The San Francisco Marathon26th Jul 2020, San Francisco
- Kaiser San Francisco Half Marathon,10k & 5k2nd Feb 2020, San Francisco
- Santa Hustle Roseville22nd Dec, Roseville
- Bay to Bridge Half Marathon3rd May 2020, San Francisco
- Hark the Herald Angels Half Marathon14th Dec, Tiburon
- Peacock Gap Trail Run7th Dec, San Rafael