Virginia · 50 Miler · 25M
OSS/CIA 50 Mile Night Run
OSS/CIA 50 Mile Night Run is a 50 Miler and 25M event held in Triangle, Virginia. Its next confirmed date is Saturday, June 12, 2027. About 72 runners take part across all distances.
- Race day
- June 12, 2027
- Location
- Triangle, VA
- Field size
- ~72 runners
Race details
- Date
- Saturday, June 12, 2027
- Location
- Triangle, Virginia
- Distances
- 50 Miler, 25M
- Field size
- About 72 runners
- Registration
- ultrasignup.com
- Official website
- athletic-equation.com
Registration, course & weather
- Registration status
- Open
- Entry fee
- Listed fee for the longest distance, $140 (from athletic-equation.com, checked October 6, 2026)
- Start time
- 6:00 PM EDT
- Course profile — 50 Mile
- Loop course; Trail surface; Not USATF certified
- Course profile — 25 Mile
- Loop course; Trail surface; Not USATF certified
About the OSS/CIA 50 Mile Night Run
A two-loop, 50-mile overnight trail run through Prince William Forest Park, once a World War II training ground for the OSS. The race starts at 6 PM and finishes by 8:30 AM, with a one-loop option.
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OSS/CIA 50 Mile Night Run: common questions
- When is the OSS/CIA 50 Mile Night Run?
- The next confirmed date is Saturday, June 12, 2027.
- Where is the OSS/CIA 50 Mile Night Run held?
- In Triangle, Virginia.
- What distances does the OSS/CIA 50 Mile Night Run offer?
- 50 Miler and 25M.
- How many people run the OSS/CIA 50 Mile Night Run?
- About 72 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the OSS/CIA 50 Mile Night Run?
- Registration is handled by the organiser at ultrasignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the OSS/CIA 50 Mile Night Run?
- Yes — registration is open. Listed fee for the longest distance, $140 (from athletic-equation.com, checked October 6, 2026).
- What time does the OSS/CIA 50 Mile Night Run start?
- 6:00 PM EDT.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.