Pennsylvania · 50K · 20 Miles · 5K

Sidewinder

Sidewinder is a 50K, 20 Miles and 5K event held in Coraopolis, Pennsylvania. It was last held on September 5, 2026 and is usually run in September; the next date hasn't been announced yet. About 52 runners take part across all distances.

Usually held
September
Location
Coraopolis, PA
Field size
~52 runners

Race details

Last held
September 5, 2026
Usually held in
September
Distances
50K, 20 Miles, 5K
Field size
About 52 runners
Course
1900 ft gain
Registration
runsignup.com

Registration, course & weather

Start time
8:00 AM EDT
Course profile — Half Marathon
Lollipop course (a loop with an out-and-back section); Trail surface; 1900 ft gain (estimated from third-party elevation data)
Course profile — 20 Miles
Lollipop course (a loop with an out-and-back section); Trail surface; 3200 ft gain (estimated from third-party elevation data)
Course profile — 50K
Lollipop course (a loop with an out-and-back section); Trail surface; 4500 ft gain (estimated from third-party elevation data)

About the Sidewinder

Are you ready to launch your running to the next level in 2026? Join us for the first ever Sidewinder in Montour Woods Conservation Area, with proceeds benefiting the Hollow Oak Land Trust . Choose your distance: Half Marathon (hikers welcome), 20 Mile (hikers welcome), or the full 50K and expect a well-marked route, solid aid, and a welcoming first-year vibe. Interested in volunteering at the race? Please fill out this form . All events will begin at 8:00 am with a 10 hour cutoff. The event w…

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Sidewinder: common questions

When is the Sidewinder?
The next date hasn't been announced in the listing yet. The race is usually held in September. Check the organiser's website for the official date.
Where is the Sidewinder held?
In Coraopolis, Pennsylvania.
What distances does the Sidewinder offer?
50K, 20 Miles and 5K.
How many people run the Sidewinder?
About 52 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 Sidewinder?
Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
Is registration open for the Sidewinder?
Registration status as last checked October 20, 2026: completed.
What time does the Sidewinder start?
8:00 AM EDT.