Trail landscape for Mendocino Running Festival — 6 Hour

Mendocino Running Festival — 6 Hour

6 Hour·876 ft gain·Mendocino, California

Photo by Katelyn Warner on Unsplash

Distance6 Hour
Gain876 ft
DateSep 12, 2026
StatusTBA
FeeFree
Difficulty3/5

About This Race

Set in California's rugged Mendocino County, this running festival offers a distinctive loop-based format that accommodates runners across the distance spectrum. The event centers on a challenging 6-mile loop that climbs from the Big River valley to the valley's edge, gaining 875 feet of elevation through mostly singletrack terrain. Runners can choose between fixed distances (10K and half marathon) or timed challenges (6-hour and 12-hour formats), making it an inclusive event for both newcomers to trail running and seasoned ultrarunners looking to test their endurance. The race's multi-format approach creates a unique community atmosphere where runners of different abilities share the same challenging course. The organizers emphasize runner support with well-stocked aid stations, and the loop format allows for easy spectating and crew access. The Mendocino coast's natural beauty provides a stunning backdrop, though runners should be prepared for the technical singletrack and sustained climbing that characterizes each loop.

The course consists of a 6-mile loop starting from the Big River valley and climbing to the valley's edge with 875 feet of elevation gain per loop. The route is primarily singletrack trail, offering technical terrain that demands attention and respect. Two well-positioned aid stations provide comprehensive support throughout each loop.

Runners in the timed events complete as many loops as possible within their time limit, while distance event participants complete predetermined loop counts. The loop format allows runners to gauge their progress and adjust strategy, while the sustained climbing on each circuit creates a cumulative challenge that tests both physical and mental endurance.

Location

Practical Info

Weather

September in Mendocino typically brings mild coastal conditions with morning fog possible and temperatures ranging from the 50s to 70s Fahrenheit.

Nearest Airport

SFO - San Francisco International Airport

Accommodation

The Mendocino area offers coastal lodging options from camping to bed and breakfasts, though early booking is recommended due to the scenic location's popularity.

Best For

Trail runners seeking loop-format challengesFirst-time ultra runners (6-hour option)Experienced runners testing endurance limits

Notable Features

The festival's unique multi-format structure allows runners to choose between traditional distances and time-based challenges on the same challenging loop course. The emphasis on runner support with well-stocked aid stations and the scenic Mendocino County location create an experience that balances competitive challenge with community celebration.

Other Distances at This Event

10K

876 ft gain

Set in California's rugged Mendocino County, this running festival offers a distinctive loop-based format that accommodates runners across the distance spectrum. The event centers on a challenging 6-mile loop that climbs from the Big River valley to the valley's edge, gaining 875 feet of elevation through mostly singletrack terrain. Runners can choose between fixed distances (10K and half marathon) or timed challenges (6-hour and 12-hour formats), making it an inclusive event for both newcomers to trail running and seasoned ultrarunners looking to test their endurance. The race's multi-format approach creates a unique community atmosphere where runners of different abilities share the same challenging course. The organizers emphasize runner support with well-stocked aid stations, and the loop format allows for easy spectating and crew access. The Mendocino coast's natural beauty provides a stunning backdrop, though runners should be prepared for the technical singletrack and sustained climbing that characterizes each loop.

Half Marathon

876 ft gain

Set in California's rugged Mendocino County, this running festival offers a distinctive loop-based format that accommodates runners across the distance spectrum. The event centers on a challenging 6-mile loop that climbs from the Big River valley to the valley's edge, gaining 875 feet of elevation through mostly singletrack terrain. Runners can choose between fixed distances (10K and half marathon) or timed challenges (6-hour and 12-hour formats), making it an inclusive event for both newcomers to trail running and seasoned ultrarunners looking to test their endurance. The race's multi-format approach creates a unique community atmosphere where runners of different abilities share the same challenging course. The organizers emphasize runner support with well-stocked aid stations, and the loop format allows for easy spectating and crew access. The Mendocino coast's natural beauty provides a stunning backdrop, though runners should be prepared for the technical singletrack and sustained climbing that characterizes each loop.

12 Hour

876 ft gain

Set in California's rugged Mendocino County, this running festival offers a distinctive loop-based format that accommodates runners across the distance spectrum. The event centers on a challenging 6-mile loop that climbs from the Big River valley to the valley's edge, gaining 875 feet of elevation through mostly singletrack terrain. Runners can choose between fixed distances (10K and half marathon) or timed challenges (6-hour and 12-hour formats), making it an inclusive event for both newcomers to trail running and seasoned ultrarunners looking to test their endurance. The race's multi-format approach creates a unique community atmosphere where runners of different abilities share the same challenging course. The organizers emphasize runner support with well-stocked aid stations, and the loop format allows for easy spectating and crew access. The Mendocino coast's natural beauty provides a stunning backdrop, though runners should be prepared for the technical singletrack and sustained climbing that characterizes each loop.