Avenue of the Giants Marathon
Weott, United States of America · Monday 3 May 2027
The event called Avenue of the Giants Marathon takes place annually in early May in Humboldt Redwoods State Park, California, traversing the Avenue of the Giants, a highway renowned for its ancient redwood trees. Established in 1972 by the Six Rivers Running Club during the early boom of long-distance running in Humboldt County, its creation aimed to offer local athletes a qualifying opportunity for national competitions, including the U.S. Olympic Trials and, later, the Boston Marathon.
Difficulty Calculator
h
:m
:s
Adjusted Time
4:03:49
Time difference: +3.8 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain212m
Elevation High113m
Elevation Low51m
Weather Forecast
High21°C
Low9°C
Chance of Rain26%
How hard is Avenue of the Giants Marathon?
Moderateharder than 52% of marathons
Flattest / easiestHardest
On our difficulty model, Avenue of the Giants Marathon plays about 7 minutes slower than an average road marathon for a 3:30 runner. It ranks #551 hardest of 1151 marathons we analyse, and #294 of 576 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Avenue of the Giants Marathon?
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Avenue of the Giants Marathon | Difference |
|---|---|---|
| 3:00:00 | 3:00:12 | +00:12 |
| 3:30:00 | 3:31:55 | +01:55 |
| 4:00:00 | 4:03:49 | +03:49 |
| 4:30:00 | 4:35:52 | +05:52 |
| 5:00:00 | 5:08:03 | +08:03 |
| 5:30:00 | 5:40:23 | +10:23 |
| 6:00:00 | 6:12:51 | +12:51 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Avenue of the Giants Marathon 2027 Course Analysis
Avenue of the Giants Marathon is a full marathon held in Weott, United States of America. It is scheduled for Monday 3 May 2027. The course is run on road surface with 212m of total climbing, with its high point near 113m above sea level. For registration and full race details, visit the official Avenue of the Giants Marathon website.
Elevation Profile
With 212m of total climbing, this is a gently undulating course. The elevation changes are manageable for most runners and shouldn't greatly affect your pacing.
Expected Race Day Weather
Based on historical weather data for May, the expected race day conditions are as follows. Moderate temperatures between 9°C and 21°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance on race day. There is a moderate chance of rain (26%). Runners may want to prepare for wet conditions but shouldn't expect persistent rainfall.
Surface Type: Road
Avenue of the Giants Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Avenue of the Giants Marathon against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Avenue of the Giants Marathon fits your goal, these courses play out about the same on our difficulty model.
Other Marathons in United States of America
Run Crazy Horse
Crazy Horse Memorial, United States of America
Road216m gainOct 2026
Des Plaines River Trail Marathon
Libertyville, United States of America
Trail144m gainOct 2026
Hartford Marathon
Hartford, United States of America
Trail230m gainOct 2026
Rogue Marathon
Medford, United States of America
Road168m gainOct 2026
Whiskey Row Marathon
Prescott, United States of America
Road0m gainOct 2026
Holloman Ace of Races Marathon
Alamogordo, United States of America
Road104m gainOct 2026