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Built on bad decisions in Boulder, CO.

Behind the Rocks Ultra 50 Mile

Basic Listing
  1. Mad Moose Events
  2. 2026 Edition

Behind the Rocks 50M delivers a rugged, red-rock desert gauntlet of slickrock climbs, sandy miles, and big-sky views in the heart of Moab.

Explore the Course
Interactive map with aid stations, elevation & weather
DirectionsExplore
DeadlineMarch 25, 2026
This event took place on March 28, 2026

Nearby races

Other trail races within 104 miles

Course map for Behind the Rocks Ultra 50K

Behind the Rocks Ultra 50K

50K
Moab, UT, US
Apr 3, 2027
32.2 miles
3,830 ft gain
Loop
Course map for Moab 240 Endurance Run
Lottery

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241.8 miles
31,890 ft gain
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Dropbags
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Course map for Thelma and Louise 50K

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31.07 miles
2,980 ft gain
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Course map for Desert RATS Trail Running Festival 100K

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6,730 ft gain
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Course map for Kessel Run Ultra 50 Mile

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Course map for Box Canyon Trail Races 30K

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Course map for Telluride Mountain Run 65 Mile
Qualifier Req

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65 miles
22,500 ft gain
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Crew
Pacers
Dropbags
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All trail races in Utah→
March 28, 2026
Saturday 6:00am MDT start
Moab, UT
United States
50 miles
Loop Course
6,970 ft
Elevation Gain
Historical weather
37°F / 58°FLo/Hi Temp
29°F / 49°FFeels Like
52%Cloud Cover
0% (0.03 in)Precipitation
13 mphWind Speed
38%Humidity
7:09 AMSunrise
7:36 PMSunset
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
Website

What Makes It Great

The flagship event and the most demanding of the four. The 50-miler gains just under 5,800 feet across seven aid stations and carries a 14-hour cutoff. What makes it particularly tough is the back-loading of the climbing - the majority of the elevation gain comes in the second half, when runners are already deep into fatigue. Cell service is sparse or absent for most of the route, and aid stations are far apart, requiring runners to be self-sufficient and carry mandatory water. The course takes in some of the most remote and seldom-visited terrain in the Moab area, earning its reputation as one of the harder desert ultras in the Southwest.

Difficulty

Intermediate
4/10

Some ultra experience recommended

Technical Terrain
Sun Exposure
Remote Terrain
Steep Climbing

Race Highlights

Classic Moab slickrock + big-desert views
The course is built to showcase Moab’s technical slickrock and the scenery in the Behind the Rocks Wilderness Area, with frequent views out to the La Sal Mountains (often snow-capped in late March).
Varied terrain that keeps you engaged
Expect a mix of smoother doubletrack, sandy washes, technical singletrack, and rim-running sections
Signature “oh wow” moments
Notable technical features and punchy climbs/descents (including the famously steep Jackson's Ladder section, plus some of the best rock/arch views as you work back toward the finish.

Behind the Rocks Ultra 50 Mile

Moab, UT, United StatesMarch 28, 2026

March 28, 2026

Behind the Rocks Ultra 50 Mile is a loop trail race in Moab, UT, United States, held on March 28, 2026. The course covers 50 miles, climbs 6,970 ft, and has a 14h cutoff.

Course map for Behind the Rocks Ultra 50 Mile
DistDistance50 mi
GainElevation Gain6,970 ft
LimitCutoff14 h
Terrain Technical Terrain
Sun ExposureRemote TerrainSteep Climbing

Entry Timeline

Registration DeadlineMarch 25, 2026
Race DayMarch 28, 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.

Terrain

Technical Difficulty5/10

Moderate trail conditions with some technical sections

50.0 mi
Distance
Loop
Route
14h
Cutoff Time
5,098 ft
Average Elevation
6,970 ft
Total Ascent
6,970 ft
Total Descent
5,574 ft
High Point
4,111 ft
Low Point
Explore Course
Course map for Behind the Rocks Ultra 50 Mile
Launch Course Explorer

Aid Stations & Cutoffs

LocationMileElevationCutoffCrewDrop bags
Start
Start
0.00 ft—
The Pit
Aid Station
6.05,197 ft—
Gatherer Canyon
Aid Station
16.04,144 ft
6h12:00 PM
Drop Bags
Oasis
Aid Station
24.05,509 ft—
The Pit
Aid Station
27.50 ft—
Finish Line
Aid Station
32.05,318 ft
8h25m2:25 PM
Crew
Drop Bags
The Pit
Aid Station
38.00 ft—
Oasis
Aid Station
42.05,561 ft—
The Pit
Aid Station
45.55,328 ft—
Finish
Finish
50.00 ft
14h8:00 PM
Crew
Drop Bags

Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.

Dogs Allowed

Dogs must be on-leash, well-behaved, and cannot be on course.

On-Site Camping Available

Free camping at the start line

Crew Access Points

Pacer Rules

No Pacers Allowed

Crew Rules

  • Crew and spectators are only allowed at the start/finish, which includes mile 32 aid
Daylight
12h 27m
7:09 AM7:36 PM
58°F / 37°F
Feels like 49°F / 29°F
Temperature Hi/Lo
0% (0.03 in)
Precipitation
13 mph
Wind
38%
Humidity
52%
Cloud Cover
Based on historical averages for March 28

Gear Rules

Trekking poles allowed

Required Gear

  • 40oz water capacity (checked when leaving Gatherer Aid)
  • Reusable cup

Recommended Gear

No recommended gear specified

Videos & Race Reports

No videos or race reports available for this event yet.

Reviews

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Registration closed