Course map, elevation profile & surface
Fly the course
Follow the route over 3D terrain, mile by mile.
Race-day light
For a 1:55 finish (an estimate) · starting 7:00 AM Oct 3. Dark means the sun below civil twilight.
Climbs
1 climb · 433 ft totalbiggest firstAid stations as published on the course file
| Aid station | Mile | km |
|---|---|---|
| A Buttes Aid Station | 6.0 | 9.7 |
| Start/Finish | 9.4 | 15.2 |
Badge colours match the markers on the map above — always confirm locations and cutoffs with the race organizer.
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Conditions typical race-day weather for Oct 3 at the start
Typical = the median of 2016–2025 for Oct 3 ±3 days at the start line; a wet day has 1 mm of rain or more. Historical weather from Open-Meteo.
Race almanac 1 year of this race
Past editions
On race day it reached 83°F at the start, with a low of 55°.
| Year | Start °F | Rain | Wind | Heat index |
|---|---|---|---|---|
| 2026 Oct 3 | 83°/55° | dry | 12mph | 80° |
Next race day Sat, Oct 2, 2027 · 7:00 AM start
First and last light are civil twilight, the sun 6° below the horizon. The moon is lit as at midnight after the start; headlamp hours count a typical finish from the start while the sun is below civil twilight. Worked out for the start line.
race-day weather from the Open-Meteo historical archive (ERA5) at the start line.
Reviews what runners who have been there say
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About this course
Arches Marathon 15K — 2026 covers 9.4 mi (15.2 km) with 709 ft of elevation gain. That is about 75 ft per mile of climbing, and 702 ft of descent. The course tops out at 5,709 ft and bottoms out at 5,246 ft. The surface is 100% gravel. There is 1 aid station on course; the longest stretch between aid is 6.0 mi. The profile has 1 sustained climb; the only one is the climb from mi 0.3, +433 ft over 1.6 mi at 5.3% on average (steepest stretch 8%). Race day is October 3, 2026, starting at 7:00 AM; the sun rises at 7:16 AM and sets at 6:59 PM. Typical race-day weather at the start: a high of 71°F and a low of 52°F, with a 23% chance of a wet day. The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.
Load the course in the TrailGoat Run Planner for grade-adjusted pacing, climb-by-climb splits, hourly weather and a full hydration & fueling plan — free, no account needed.
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Course history
- Sep 3, 2026Added to the catalog
Races like this one close in distance, climbing, terrain, altitude, weather and season
- Canyonlands Ultra 15k — 2026Oct · 9 mi · 75 ft/miSame distance · Similar climbing · Similar terrain
- Arches Marathon 1/2 Marathon — 2026Oct · 12 mi · 85 ft/miSimilar terrain · Similar weather · Similar climbing
- Canyonlands Ultra Half Marathon — 2026Oct · 12 mi · 85 ft/miSimilar terrain · Similar climbing · Same month
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