Course map, elevation profile & surface
Fly the course
Follow the route over 3D terrain, mile by mile.
Race-day light
For a 2:35 finish (an estimate) · starting 7:00 AM Nov 1 · dark at the start until mi 1.0. Dark means the sun below civil twilight.
Climbs
3 climbs · 1,450 ft totalbiggest firstElevation gain, measured two ways
| Source | Gain | vs lidar |
|---|---|---|
| Course file (GPX) | 2,675ft | +59% |
| USGS lidar, 1 m | 1,677ft | 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 Nov 1 at the start
Typical = the median of 2016–2025 for Nov 1 ±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 58°F at the start, with a low of 38°.
| Year | Start °F | High point °F | Rain | Wind |
|---|---|---|---|---|
| 2025 Nov 1 | 58°/38° | 55°/36° | dry | 12mph |
race-day weather from the Open-Meteo historical archive (ERA5) at the start line and the course high point (2,884 ft).
Reviews what runners who have been there say
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About this course
Great Eastern Endurance Run GEER — 2025 covers 11.1 mi (17.9 km) with 2,675 ft of elevation gain. That is about 241 ft per mile of climbing, and 2,714 ft of descent. The course tops out at 2,884 ft and bottoms out at 1,841 ft. The profile has 3 sustained climbs; the biggest is the climb from mi 1.7, +997 ft over 3.9 mi at 4.9% on average (steepest stretch 21%). Race day is November 1, 2025, starting at 7:00 AM; the sun rises at 7:42 AM and sets at 6:18 PM. Typical race-day weather at the start: a high of 58°F and a low of 42°F, with a 29% 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
- Oct 13, 2026Added to the catalog
Races like this one close in distance, climbing, terrain, altitude, weather and season
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- Hacienda Hills Trail Run - Winter 1/2 Marathon — 2027Jan · 13 mi · 251 ft/miSimilar weather · Similar climbing
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