The Humboldt Redwoods Marathon course is the same as Avenue of the Giants Marathon course held in May.
The rolling course is on pavement and almost entirely under a canopy of old growth redwood trees. The races finish on the Avenue of the Giants about 148 yards north of the starting line.
Rankings will be listed once the results for 2023 have been posted (if the races were not cancelled).
Its Course Score of 97.52 ranks it as the 352nd fastest marathon course in the U.S. and the 27th fastest course in California.
The typical race time temperature and humidity levels are the ideal range for optimal marathon performance. This, coupled with the Course Score, gives the Humboldt Redwoods Marathon a PR Score of 97.52. This PR Score ranks it as the 299th fastest marathon in the U.S. and the 21st fastest in California.
Learn more about PR Scores and Course Scores on the FAQ page.
Humboldt Redwoods Marathon Elevation Chart
Max Elevation: 360 feet (109m) Min Elevation: 124 feet (37m)
Hotel & VRBO Accommodations for the Humboldt Redwoods Marathon
View available accomodations around the Humboldt Redwoods Marathon Finish Line and Course. Book your Reservation now before the best places are sold out.
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How Fast Can You Go?
If you ran the Humboldt Redwoods Marathon in 4:42:00, what would your time in other marathons be?
See how your race times would compare on other marathon courses with our time conversion tool.
Small, no frills race with the first half going out and back on the Avenue of Giants. Very scenic. Typically great marathon weather. Crowd support is sparse, you are in the middle of nowhere northern California. Only complaint is second half of the race the road you run on needs to be repaved - watch your step or you'll hit a pothole.
Race Tips
You are in the middle of nowhere. Seriously. Don't forget your GU or whatever nutrition you take; they won't have any to buy at packet pickup. Packet pickup is just that, here's your bib, here's your shirt, see you tomorrow.
