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Built on bad decisions in Boulder, CO.

Sonoma Coast 50K

Draft Listing
  1. Skybreaker Racing
  2. 2025 Edition

Ridgeline views to the Pacific, 7,000 ft of coastal climbing, and no pacers or crew

Directions
This event took place on May 31, 2025

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All trail races in California→
May 31, 2025
Saturday 8:00am PDT start
Duncans Mills, CA
United States
31.1 miles
Loop Course
7,260 ft
Elevation Gain
Open Registration
No lottery
No Service Requirement
Does not require trail or volunteer work
No Qualifier
No qualifier race required
Challenging
Some ultra experience recommended
Links
WebsiteInstagramFacebook
2024
Established
77%
Finish Rate
5:16 M
Course Record

What Makes It Great

The Sonoma Coast 50K winds through the trails and fire roads of Sonoma Coast State Park, climbing from fern-draped redwood canyons to an exposed ridge with sweeping views of the Pacific. The course summits Red Hill, threads through five aid stations, and returns to the ancient redwoods of Pomo Canyon Environmental Camp. No crew or pacers allowed — a genuinely self-reliant effort on one of California's most scenic coastline parcels.

Difficulty

Intermediate
5/10

Some ultra experience recommended

Steep Climbing
Technical Descent
Sun Exposure
Variable Weather

Race Highlights

Pacific Ocean ridgeline views
Exposed ridgeline sections offer sweeping views all the way to the Pacific coastline
Redwood canyon start/finish
Begins and ends among towering redwoods and ferns at Pomo Canyon Environmental Camp
Red Hill summit
Course summits Red Hill, a prominent peak in Sonoma Coast State Park
Fully self-reliant
No crew or pacers permitted — runners carry all supplies between well-stocked aid stations
New race, est. 2024
One of the newest trail races on California's North Coast, just two editions old

Finish Awards

Finisher Medal
Full-color medal awarded at the finish line, plus a finisher meal (vegan option available).

Sonoma Coast 50K

Duncans Mills, CA, United StatesMay 31, 2025

May 31, 2025
Course map for Sonoma Coast 50K
DistDistance31.1 mi
GainElevation Gain7,260 ft
LimitCutoff9 h
Steep ClimbingTechnical DescentSun ExposureVariable Weather

Entry Timeline

Race DayMay 31, 2025

Lottery

This event uses open registration - no lottery entry required.

Qualifier

This event does not require a qualifier for entry.

Service Requirement

This race does not have a service requirement for entry.
31.1 mi
Distance
Loop
Route
9h
Cutoff Time
591 ft
Average Elevation
7,260 ft
Total Ascent
7,260 ft
Total Descent
1,302 ft
High Point
36 ft
Low Point
Course map
Launch Course Explorer

Aid Stations

LocationMileElevation
Pomo Canyon Aid
Aid Station
0.1102 ft
Willow Creek Aid
Aid Station
11.5112 ft
Freezeout Aid
Aid Station
17.172 ft

Sign in to see cutoffs, crew access, drop bags, and services for every aid station.

No Dogs Allowed
On-Site Camping Available

Walk-in only camping at Pomo Canyon Environmental Camp (the start/finish area). No reservations can be made — bring cash to pay on-site via the Iron Ranger. No running water on-site. Other accommodations available in Jenner, Duncans Mills, and Bodega Bay.

Crew Access Points

Pacer Rules

No Pacers Allowed

Crew Rules

No Crew Allowed
Weather
Rapid Weather Changes

Late May on the Sonoma Coast brings unpredictable fog, coastal wind, and occasional morning rain — conditions can shift rapidly on exposed ridgeline sections

High UV Exposure

Extended exposed ridgeline running with minimal shade at higher elevations

Gear Rules

Trekking poles allowed

Required Gear

No required gear specified

Recommended Gear

No recommended gear specified

Featured Videos

Sonoma Coast Trail Runs 2024
Sonoma Coast Trail Runs 2024
Skybreaker Racing•2024

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