Trail running course through singletrack trails in California, USA
Mendocino Running Festival

Mendocino Running Festival — 6 Hour

6 Hour·282 ft gain·Mendocino, California
foresttechnicaltrailcoastalloop

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Distance6 Hour
Gain282 ft
DateSep 12, 2026
Difficulty2/5

About This Race

The 6-hour time-based challenge allows runners to cover as much distance as possible within the time limit, completing multiple loops of the undulating course. This format suits runners who prefer focusing on time rather than a predetermined distance, offering flexibility to adjust effort based on how they feel during the event. The rolling 876-foot elevation profile per loop creates a rhythm that rewards steady pacing and smart energy management.

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.

Elevation Profile

Elevation profile estimated from terrain data. Actual course may differ.

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

82 ft gain

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.

Half Marathon

876 ft gain

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.

12 Hour

272 ft gain

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.