Skip to content
Endurance AnalyticsEndurance Analytics
  • Calendar
  • Trail Finder
  • Geo Quiz
  • Blog
  • AI Buddy
  • Contact
For organizers
Trail runningBiathlonSkiingSkimoOlympicsCalendarTrail FinderGPX AnalyzerRace Pace CalculatorAI BuddyComparePricingConnect AIBlog
For organizersRace website assistantFind my racePricingDocumentation

Know the course before you run it

© 2026 Endurance Analytics. All rights reserved.

Privacy policyTerms of serviceRefundsContact
  1. Home
  2. Trail running
  3. 2027
  4. Arches Ultra
Arches Ultra
81km8150km5021km219km9

Arches Ultra Half Marathon

21.0km·266m+
January 30, 08:30 AM
Moab,
United States
source

Race Pace Calculator · GPX Analyzer · Trail Finder

Other races: United States

  • Behind the Rocks Ultra · Behind the Rocks Ultra 10 MileApril 3, 2027 · 16.0km · 270m+
  • Lake Sonoma · Trail Sisters Half MarathonApril 10, 2027 · 21.0km · 710m+
  • Moab's Red Hot Ultra · Moab's Red Hot Ultra 15KFebruary 27, 2027 · 15.0km · 294m+
  • Moab Trail Marathon · Half Marathon (USATF Trail Half Marathon Championship)November 7, 2026 · 21.1km
  • Moab Trail Marathon · Sunday Half MarathonNovember 8, 2026 · 21.1km
  • Dead Horse Ultra · Dead Horse 15KNovember 14, 2026 · 15.0km · 284m+

Read

  • How to Taper for a Marathon, Half Marathon or Ultra
  • Types of Runs and What Each Workout Actually Trains
  • Hill Training for Trail Runners: Train the Descents

Full calendar: United States

Arches Ultra Half Marathon · Race profile

Distance
21.0km
Gain
266m+
FlatKM
21.2
Max
1456m
Min
1360m

About Arches Ultra Half Marathon

Arches Ultra Half Marathon is the 21.0km trail race at Arches Ultra 2027 (Moab, United States). The race starts on January 30, 2027 at 08:30 AM.

Course

The course climbs 266m+. With 13m/km of climbing, the course is predominantly runnable. By gradient, 3% of the distance is uphill, 11% downhill and 86% flat. Surface: 79% trail and 20% road. Flat-equivalent effort: 21.2 FlatKM.

Poles

The course is runnable enough that trekking poles are not needed.

Quad damage

There is too little runnable descent to damage the quads: plan the race around climbing and fuelling.

Weather

On race day, start temperatures have historically ranged from -4°C to 6°C, with around 4°C at the highest point; the chance of precipitation is about 20%.

This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Arches Ultra Half Marathon.

Other distances of Arches Ultra 2027Arches Ultra 50 Mile (81.0km)·Arches Ultra 50k (50.0km)·Arches Ultra 9k (9.0km)

Other editions of Arches Ultra Half Marathon2026

Official websitewww.madmooseevents.com/arches-ultra