Course map, elevation profile & surface
Fly the course
Follow the route over 3D terrain, mile by mile.
Race-day light
For a 24:45 finish (an estimate) · starting 5:00 AM Sep 11 · dark at the start until mi 4.7 · headlamp mi 57–the finish. Dark means the sun below civil twilight.
Climbs
22 climbs · 19,675 ft totalbiggest firstElevation gain, measured three ways
| Source | Gain | vs lidar |
|---|---|---|
| Race website | 23,999ft | +8% |
| Course file (GPX) | 26,053ft | +17% |
| USGS lidar, 1 m | 22,173ft | reference |
They differ because a GPS file picks up noise on every wiggle and often takes its heights from a coarse terrain model, while lidar maps the ground itself to about a metre. We sampled this route every 98 ft against USGS 3DEP and counted each rise of 10 ft or more, on Oct 23, 2026. The planner still uses the course file.
Aid stations as published on the course file
| Aid station | Mile | km |
|---|---|---|
| A Grobben's Water Station (water only) | 10.9 | 17.6 |
| A Bountiful B | 16.2 | 26.1 |
| A Sessions Liftoff | 20.4 | 32.9 |
| A Big Mountain Pass | 31.2 | 50.3 |
| A Alexander Ridge | 40.0 | 64.4 |
| A Lamb's Underpass | 46.8 | 75.3 |
| A Big Water | 55.5 | 89.3 |
| A Desolation Lake | 60.4 | 97.1 |
| A Scotts Peak | 64.2 | 103.4 |
| A Brighton Lodge | 68.6 | 110.3 |
| A Ant Knolls | 73.0 | 117.4 |
| A Pole Line Pass | 76.1 | 122.4 |
| A Rock Springs Water Stop (water only) | 80.0 | 128.8 |
| A Little Deer Creek | 86.9 | 139.8 |
| A Decker Canyon | 93.0 | 149.7 |
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 Sep 11 at the start
Typical = the median of 2016–2025 for Sep 11 ±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 84°F at the start, with a low of 65°.
| Year | Start °F | High point °F | Rain | Wind | Heat index |
|---|---|---|---|---|---|
| 2026 Sep 11 | 84°/65° | 60°/42° | dry | 9mph | 81° |
race-day weather from the Open-Meteo historical archive (ERA5) at the start line and the course high point (10,446 ft).
Reviews what runners who have been there say
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About this course
Wasatch 100 — 2026 covers 98.5 mi (158.5 km) with 26,053 ft of elevation gain through Utah, United States. That is about 265 ft per mile of climbing, and 25,387 ft of descent. The course tops out at 10,446 ft and bottoms out at 4,875 ft. The surface is 74% trail, 23% gravel and 3% paved. There are 15 aid stations on course; the longest stretch between aid is 10.9 mi. The profile has 22 sustained climbs; the biggest is the climb from mi 2.4, +2,733 ft over 2.6 mi at 19.6% on average (steepest stretch 64%). Race day is September 11, 2026, starting at 5:00 AM; the sun rises at 7:05 AM and sets at 7:45 PM. Typical race-day weather at the start: a high of 77°F and a low of 56°F, with a 13% 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.
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Course history
- Jul 27, 2026Added to the catalog
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