Course map, elevation profile & surface
Fly the course
Follow the route over 3D terrain, mile by mile.
Race-day light
For a 20:50 finish (an estimate) · starting 7:00 AM Oct 25 · dark at the start until mi 1.0 · headlamp mi 58–the finish. Dark means the sun below civil twilight.
Climbs
11 climbs · 5,203 ft totalbiggest firstElevation gain, measured two ways
| Source | Gain | vs lidar |
|---|---|---|
| Course file (GPX) | 8,217ft | -23% |
| USGS lidar, 1 m | 10,658ft | 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 30, 2026. The planner still uses the course file.
Aid stations as published on the course file
| Aid station | Mile | km |
|---|---|---|
| Start/Finish | 0.0 | 0.0 |
| A Concho Rim Aid Station (7/93) | 7.2 | 11.6 |
| A Thurmond Aid Station (17) | 17.4 | 28.0 |
| A Cunard Aid Station (27/80.5) | 26.9 | 43.3 |
| A Bike Farm Aid Station (38.5/64.5) | 38.7 | 62.3 |
| A Hawks Nest Aid Station (53) | 53.3 | 85.8 |
| A Fayette Station Aid Station (43.5/59) | 59.4 | 95.6 |
| A Arrowhead Aid Station (70.5) | 70.5 | 113.5 |
| A Erskine Aid Station (86) | 86.8 | 139.7 |
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 Oct 25 at the start
Typical = the median of 2016–2025 for Oct 25 ±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 56°F at the start, with a low of 33°.
| Year | Start °F | Rain | Wind |
|---|---|---|---|
| 2025 Oct 25 | 56°/33° | dry | 7mph |
race-day weather from the Open-Meteo historical archive (ERA5) at the start line.
Reviews what runners who have been there say
No reviews yet — be the first to run it and tell other runners what to expect.
About this course
Rim to River 100 — 2025 covers 100.9 mi (162.3 km) with 8,217 ft of elevation gain. That is about 81 ft per mile of climbing, and 8,217 ft of descent. The course tops out at 2,028 ft and bottoms out at 856 ft. There are 8 aid stations on course; the longest stretch between aid is 16.3 mi. The profile has 11 sustained climbs; the biggest is the climb to Arrowhead Aid Station (70.5), +899 ft over 10.0 mi at 1.7% on average (steepest stretch 5%). Race day is October 25, 2025, starting at 7:00 AM; the sun rises at 7:44 AM and sets at 6:35 PM. Typical race-day weather at the start: a high of 62°F and a low of 44°F, with a 36% 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
- Oct 29, 2026Added to the catalog
Races like this one close in distance, climbing, terrain, altitude, weather and season
- Rim to River 100 100 Miler — 2026Oct · 101 mi · 82 ft/mi · WVSame distance · Similar climbing · Similar weather
- Midstate Massive Ultra Trail — 2026Oct · 100 mi · 111 ft/mi · NHSame distance · Similar weather · Same month
- Mines of Spain 100 100 Miler — 2026Oct · 101 mi · 116 ft/mi · IASame distance · Similar weather · Same month
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