RunRace USA › Pennsylvania › Boulder Field 100
Boulder Field 100
Jim Thorpe, Pennsylvania · Saturday, September 12, 2026 · 100K, 50K, 18 Miles
Official race page & registration ↗Boulder Field 100 takes place on Saturday, September 12, 2026 in Jim Thorpe, Pennsylvania. The race offers 3 distances: 100K, 50K, 18 Miles. For anyone travelling in, Hazleton is about 16 miles away and Philadelphia is about 79 miles away.
It is one of 245 races on the Pennsylvania calendar that September.
- Date
- Saturday, September 12, 2026
- Location
- Jim Thorpe, Pennsylvania
- Distances
- 100K, 50K, 18 Miles
Listing from the 2026 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.
Making a race weekend of it?
Stay near the start line in Jim Thorpe: check in Sep 11, out Sep 13.
Common questions
When is Boulder Field 100?
Boulder Field 100 is scheduled for Saturday, September 12, 2026.
Where is Boulder Field 100 held?
Boulder Field 100 is held in Jim Thorpe, Pennsylvania. It is about 16 miles from Hazleton and 79 miles from Philadelphia.
What distances does Boulder Field 100 offer?
The listed distances are 100K, 50K, 18 Miles.
How do I register for Boulder Field 100?
Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.
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See every race on the Pennsylvania calendar, Pennsylvania Ultras, or use the Race Finder for maps and filters.