Course map, elevation profile & surface
Fly the course
Follow the route over 3D terrain, mile by mile.
Race-day light
For a 24:00 finish (an estimate) · starting 7:00 AM Sep 19 · headlamp mi 52–99. Dark means the sun below civil twilight.
Climbs
15 climbs · 17,766 ft totalbiggest firstElevation gain, measured two ways
| Source | Gain | vs lidar |
|---|---|---|
| Course file (GPX) | 19,885ft | -5% |
| USGS lidar, 1 m | 21,037ft | 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 24, 2026. The planner still uses the course file.
Conditions typical race-day weather for Sep 19 at the start
Typical = the median of 2016–2025 for Sep 19 ±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 77°F at the start, with a low of 49°.
| Year | Start °F | High point °F | Rain | Wind |
|---|---|---|---|---|
| 2026 Sep 19 | 77°/49° | 63°/36° | dry | 6mph |
race-day weather from the Open-Meteo historical archive (ERA5) at the start line and the course high point (6,821 ft).
Reviews what runners who have been there say
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About this course
Plain Endurance Runs 100 Miler — 2026 covers 103.1 mi (165.9 km) with 19,885 ft of elevation gain through Washington, United States. That is about 193 ft per mile of climbing, and 19,859 ft of descent. The course tops out at 6,821 ft and bottoms out at 2,011 ft. The surface is 82% trail, 12% gravel and 6% paved. The profile has 15 sustained climbs; the biggest is the climb from mi 34.3, +4,311 ft over 4.1 mi at 19.8% on average (steepest stretch 97%). Race day is September 19, 2026, starting at 7:00 AM; the sun rises at 6:46 AM and sets at 7:08 PM. Typical race-day weather at the start: a high of 65°F and a low of 47°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.
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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
- Dark Divide Trail Races 100 Miler — 2026Sep · 100 mi · 202 ft/mi · WASame distance · Mostly trail · Similar climbing
- Hood Hundred — 2026Aug · 99 mi · 183 ft/mi · ORMostly trail · Same distance · Similar climbing
- The Bear 100 — 2027Sep · 99 mi · 201 ft/miSame distance · Similar climbing · High altitude
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