Beidleheimer Sidewinder

Boalsburg, United States • 3 May 2025

The Beidleheimer Sidewinder is a scenic trail race held at Whipple Dam State Park in Boalsburg, Pennsylvania. Participants can choose between a 10K or a new 20K distance, both following Leg #4 of the Tussey Mountainback 50 Mile Relay and Ultramarathon course. The race features rolling terrain on unpaved forest roads within Rothrock State Forest, with water stations at miles 3, 6.2, and 9.

The 20K course includes a challenging 1.6-mile hill. The event offers timing, water, and random prizes, with age and gender-adjusted scoring. It supports the Jana Marie Foundation as its 2025 beneficiary. Visit the organization's website for the most recent information.

Race information

20 km
20k
10 km
10k
Visit the organization's website for the most recent information.
Trail runs nearby

Run the Greenwood Furnace Snowfest 5 mile trail in Greenwood Furnace State Park, with a big climb to Stone Mountain and a fast downhill finish. Stay for SnowFest activities like snowshoeing, bonfires and a Polar Plunge.

Discover single track trails from the Susquehanna River to the Allegheny Plateau in Lock Haven, with race options from 10K to 46K. Enjoy a gourmet post race spread and watch for registration coming soon.

Rothrock by UTMB is a UTMB World Series multi day trail race in May through Rothrock State Forest, showcasing sandstone ridges, rhododendron tunnels and spring blooms. Expect challenging terrain and warm local hospitality in Happy Valley.

UTMB Index

Celebrate Oktoberfest with a 5K Trail Run at Boal City Brewing in Boalsburg this October. Tackle scenic rolling trails and hills, enjoy a free brew if 21 or older, and stay for awards and a trophy engraving for overall winners.