2026 Humboldt Redwoods Marathon, Half Marathon, 5K

The race.

The 2026 Humboldt Redwoods Marathon, Half Marathon, and 5K take place on October 11 in Weott, CA, within Humboldt Redwoods State Park. All three courses are USATF certified. The marathon distance is 26.2 miles and qualifies for Boston; the half marathon covers 13.1 miles and follows the second half of the Avenue of the Giants course; the 5K is 3.1 miles. All races start and finish at Dyerville Bridge.