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Built on bad decisions in Boulder, CO.

Siskiyou Out Back 100K

Basic Listing
  1. Siskiyou Out Back
  2. 2026 Edition

A punishing Siskiyou loop with 10,500 feet of climbing, PCT ridgelines, and deep watershed terrain

Directions
DeadlineJune 07, 2026
This event took place on July 11, 2026

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All trail races in Oregon→
July 11, 2026
Saturday 5:00am PDT start
Ashland, OR
United States
60.4 miles
Loop Course
10,500 ft
Elevation Gain
Historical weather
49°F / 76°FLo/Hi Temp
45°F / 75°FFeels Like
9%Cloud Cover
0% (0.00 in)Precipitation
10 mphWind Speed
44%Humidity
5:45 AMSunrise
8:46 PMSunset
Open Registration
No lottery
No Service Requirement
Does not require trail or volunteer work
No Qualifier
No qualifier race required
Very Challenging
Experienced ultrarunners
Links
WebsiteInstagramFacebook
1999
Established
200
Field Size
68%
Finish Rate

What Makes It Great

The SOB 100K is a challenging loop through the rugged Siskiyou Mountains, starting and finishing at Mt. Ashland Lodge at 6,500 feet. From the high country, the course descends steeply into the Ashland Creek Watershed via the Time Warp trail, winds through Ashland's backcountry watershed trails, and begins a massive 4,000-foot climb back to the PCT via Wagner Glade Trail and the primitive Split Rock ridge. The second half follows the classic SOB out-and-back along the Siskiyou Crest with panoramic views of Mt. Shasta, the Cascades, and multiple ranges before a final summit of Mt. Ashland and a steep descent to the finish. A Western States 100 qualifier and UTMB-indexed event.

Difficulty

Advanced
7/10

Experienced ultrarunners

Steep Climbing
Technical Terrain
Technical Descent
Strict Cutoffs
Night Running
Sun Exposure

Race Highlights

4,000-foot mid-race mega-climb
After descending into the Ashland Creek Watershed, runners face a relentless 4,000-foot climb back to the PCT
Views of 3+ mountain ranges
The PCT ridge out-and-back offers panoramic views of Mt. Shasta, Mt. McLoughlin, the Marble Mountains, and the Cascades
Non-profit community race since 1999
All profits support local Ashland-area non-profits — over $200,000 donated in the past decade
Western States and UTMB qualifier
Qualifies runners for the Western States 100 lottery and earns UTMB Index points

Finish Awards

Finisher Mug
All Saturday finishers (100K and 50K) receive a commemorative SOB mug at the finish.

Siskiyou Out Back 100K

Ashland, OR, United StatesJuly 11, 2026

July 11, 2026
Course map for Siskiyou Out Back 100K
DistDistance60.4 mi
GainElevation Gain10,500 ft
LimitCutoff18 h
Steep ClimbingTechnical DescentStrict CutoffsNight RunningSun Exposure

Entry Timeline

Registration DeadlineJune 07, 2026
Race DayJuly 11, 2026

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.
60.4 mi
Distance
Loop
Route
18h
Cutoff Time
5,528 ft
Average Elevation
10,500 ft
Total Ascent
10,500 ft
Total Descent
7,464 ft
High Point
2,940 ft
Low Point
Course map
Launch Course Explorer

Aid Stations

LocationMileElevation
Start
Start
0.06,575 ft
Time Warp
Aid Station
5.84,600 ft
Potlicker 1
Aid Station
11.24,892 ft
Ricketty 1
Aid Station
17.03,717 ft
Ricketty 2
Aid Station
24.53,717 ft
Potlicker 2
Aid Station
29.54,892 ft
Willamette 1
Aid Station
35.56,880 ft
Siskiyou Gap 1
Aid Station
39.65,879 ft
Jackson Gap
Aid Station
45.37,051 ft
Siskiyou Gap 2
Aid Station
51.35,879 ft
Willamette 2
Aid Station
55.36,880 ft
Start-Finish
Finish
60.46,578 ft

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

On-Site Camping Available

Paved camping at Mt. Ashland Lodge parking lot available Friday and Saturday nights. New in 2026: limitations on where you can park. No reservations mentioned — first come, first served.

Crew Access Points

Pacer Rules

No Pacers Allowed

Crew Rules

No Crew Allowed
Daylight
15h 1m
5:45 AM8:46 PM
76°F / 49°F
Feels like 75°F / 45°F
Temperature Hi/Lo
0% (0.00 in)
Precipitation
10 mph
Wind
44%
Humidity
9%
Cloud Cover
Based on historical averages for July 12
Heat Training Recommended

The lower Ashland Creek Watershed section in July can be hot; carry extra water for the descent

Rapid Weather Changes

Afternoon thunderstorms possible on the exposed PCT ridgeline; jacket recommended in drop bag at Siskiyou Gap

Gear Rules

Trekking poles allowed

Required Gear

No required gear specified

Recommended Gear

No recommended gear specified

Featured Videos

This is Siskiyou Out Back
This is Siskiyou Out Back
Hal Koerner•2023
My story from the 2024 Siskiyou Out Back (SOB) 100 km Trail Run
My story from the 2024 Siskiyou Out Back (SOB) 100 km Trail Run
Desert Shepherds•2024

Race Reports

Siskiyou Out Back 100K Race Report
By NW Dirt Churners • 2023

Videos from other Siskiyou Out Back Trail Running Festival events

Running the Siskiyou Out Back Festival 50k Race (31 miles)
Running the Siskiyou Out Back Festival 50k Race (31 miles)
Siskiyou Out Back 50K
Triple T•2023

Reviews

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Register•July 11, 2026