Beidleheimer Sidewinder

MAY
1
2027
Trail out and back at Whipple Dam State Park near Boalsburg, PA, offering 10K and 20K distances on unpaved forest roads with water stations.
Sat 1 May 2027
20 kilometers 10 kilometers

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Beidleheimer Sidewinder

Beidleheimer Sidewinder is a trail running event organized by Tussey Mountainback near Boalsburg, PA. The course is an out and back on unpaved forest roads in Rothrock State Forest and uses Leg #4 of the Tussey Mountainback 50-mile loop course. The race starts and finishes at Whipple Dam State Park. Water is available at mile 3, mile 6.2, and mile 9. Timing is provided and random prizes are given.

Runners can choose between two distance options:

  • 10K
  • 20K includes a 1.6-mile hill

Course records (listed times and year):

  • Men's 10K 37:13 (2021)
  • Women's 10K 46:12 (2021)
  • Men's 20K 1:12:33 (2021)
  • Women's 20K 1:37:27 (2021)

The event is presented as part of the Tussey Mountainback series of races and takes place at the Whipple Dam venue in central Pennsylvania. The description above reflects the course layout, available distances, aid station locations, and recorded fastest times as provided for the event. Visit the organization's website for the most recent information.

Events nearby

A 5K run, 2 mile walk and kids sprint on November 14, 2026 at Rails to Trails Alexandria Trailhead in Alexandria PA to benefit the Huntingdon County Library.
An evening ski-area race at Tussey Mountain in Boalsburg PA on December 12, 2026 offering one-mile runs and a one-hour hill repeat format with costume prizes.
A 10 km out-and-back trail race at Tussey Mountain Ski Area in Boalsburg, PA, run on Leg 1 of the Tussey Mountainback 50 Mile loop with 5 km up and 5 km down.
An 11 mile point to point race from Tussey Mountain Ski Area to Whipple Dam State Park near Boalsburg, PA, run on Legs 1-3 of the Tussey Mountainback 50 mile course.
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