Course map, elevation profile & surface
Typical finish
from 2025 results · 52 finishers · Results via UltraSignup
Fly the course
Follow the route over 3D terrain, mile by mile.
Race-day light
For a 13:16 finish (typical) · starting 7:00 AM Jun 13. Dark means the sun below civil twilight.
Climbs
biggest firstElevation gain, measured two ways
| Source | Gain | vs lidar |
|---|---|---|
| Course file (GPX) | 1,886ft | -6% |
| USGS lidar, 1 m | 2,014ft | 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 29, 2026. The planner still uses the course file.
Aid stations as published on the course file
| Aid station | Mile | km |
|---|---|---|
| Aid Station | 0.0 | 0.0 |
| Start/Finish | 0.0 | 0.0 |
| Aid station 1 | 0.0 | 0.0 |
| Aid station 2 | 0.1 | 0.1 |
| Aid station 3 | 0.1 | 0.2 |
| A Water Point and Check Point | 7.4 | 11.9 |
| A Water Point and Aid Station | 10.2 | 16.4 |
| A Aid station 4 | 10.2 | 16.4 |
| A Water Point and Check Point | 16.9 | 27.2 |
| A Turnaround on Burma | 17.8 | 28.7 |
| A Water Point | 22.8 | 36.7 |
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 Jun 13 at the start
Typical = the median of 2016–2025 for Jun 13 ±3 days at the start line; a wet day has 1 mm of rain or more. Historical weather from Open-Meteo.
Race almanac 2 years of this race
Past editions
One edition with results on file: in 2025, 52 of 79 starters finished (66%). Race-day highs at the start ran from 85° to 90°F, and 1 of 2 race days were wet.
| Year | Starters | Finishers | Finish rate | Winner | Median | Last | Start °F | Rain | Wind | Heat index |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026 Jun 13 | — | — | — | — | — | — | 90°/69° | dry | 8mph | 88° |
| 2025 Jun 14 | 79 | 52 | 66% | 8:58 | 13:16 | 14:27 | 85°/71° | 0.87in | 9mph | 89° |
Results from UltraSignup; 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
OSS/CIA 50 Mile Night Run — 2026 covers 26.0 mi (41.8 km) with 1,886 ft of elevation gain. That is about 73 ft per mile of climbing, and 1,879 ft of descent. The course tops out at 427 ft and bottoms out at 79 ft. There are 6 aid stations on course; the longest stretch between aid is 7.4 mi. Race day is June 13, 2026, starting at 7:00 AM; the sun rises at 5:45 AM and sets at 8:35 PM. Typical race-day weather at the start: a high of 83°F and a low of 65°F, with a 39% 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.
Race director? — one line of HTML, always up to date.
Course history
- Oct 29, 2026Added to the catalog
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