50 mi25 mi
OSS/CIA 50 Mile Night Run
Triangle, VirginiaAthletic Equation
- 25 mi entry
- $125
- Aid stations
- 4
- Days to register
- 227
At a glance
- Date
- Jun 12, 2027
- Location
- Triangle, Virginia
- Distances
- 50 mi, 25 mi
- Aid stations
- 4, 1 with crew access
- Registration
- Closes Jun 6, 2027, via ultrasignup.com
Listed from UltraSignup. Checked Oct 18, 2026.
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Build my planAbout this race
The OSS/CIA 50 Mile Night Run traverses the historic trails of Prince William Forest Park in Virginia, the secretive WWII training site of the Office of Strategic Services (predecessor to the CIA). Runners complete two 25+ mile loops starting just before sunset, with up to 14.5 hours to finish.
Key dates
Registration ends
Apr 30, 2027
Registration closes
Jun 6, 2027
Race day
Jun 12, 2027
Pricing
50 Miler
Registration, then $175 from May 1, 2027
$150
25M
Registration, then $150 from May 1, 2027
$125
All distances
Nightmare-athon
$100
Email me updates about OSS/CIA 50 Mile Night Run
Registration openings and major changes, like a new date or a cancellation.
Aid stations
4| Station | Distance | Crew | Drop bags | Cutoff | Supplies |
|---|---|---|---|---|---|
Telegraph Road Pavilion Start/Finish Fully stocked main aid station and start/finish location. The page also states a first-loop cutoff of exactly 6.5 hours after the official start, while the schedule lists 01:00 and the rules list a 7-hour first-loop cutoff. | -- | 01:00 | -- | ||
Oak Ridge Camp Ground Aid Station Fully stocked main aid station at the halfway point of each loop. Drop bags are transported here. The second-loop cutoff is listed as 05:45. | -- | 05:45 | -- | ||
South Valley Trail / Scenic Drive Mini-aid station with a smaller selection of food, water, and Tailwind. | -- | -- | foodwaterTailwind | ||
Burma Road / Scenic Drive Mini-aid station with a smaller selection of food, water, and Tailwind. | -- | -- | foodwaterTailwind |
Entry transfers
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Tune-up races
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Race planning
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