Run-a-Muck

Newtown Square, United States • 4 Oct 2025

Run-a-Muck is an annual 5K running and cross-country walking event held in the scenic Willistown countryside, supporting local land preservation. Participants can choose to run or "muck" through diverse terrain, making it a fun and challenging outdoor experience. The event features a lively atmosphere with food, beer, wine, live music, lawn games, a mechanical bull, face painting, and a bonfire. Leashed dogs are welcome, and prizes are awarded to the fastest runners. The event promotes community engagement and environmental conservation, offering sensory-friendly accommodations through KultureCity sensory bags to support participants with sensory needs. Visit the organization's website for the most recent information.

Race information

5 km
Visit the organization's website for the most recent information.
Trail runs nearby

Loopy Looper is an ultra running event held at Cooper River Park in Pennsauken, New Jersey, featuring a fast, flat 3.75-mile paved loop with scenic views of the Philadelphia skyline and river. The race offers multiple distances including 12-hour, 24-hour, and a 101.25-mile ultra, as well as a 4-pers..

The Run for Thorncroft & 1-Mile All-Ability Move-As-You-Please is a community health and wellness event held at Thorncroft Equestrian Center's 70-acre Farm in Malvern, PA. Featuring a 5K trail run, a 5K walk, and a one-mile move-as-you-please option, the event welcomes participants of all levels, in..

Ultra Trail DE is a trail running event held in Wilmington, Delaware, on private scenic trails at 2900 Montchanin Road. The race features a roughly 5-mile loop with about 700 feet of elevation gain per lap, including creek crossings, singletrack, rolling hills, and unique landmarks like a tunnel and..

The Bear Trail Half Marathon & 10K is a trail running event held at Lums Pond State Park in Bear, Delaware. The race features two distances: a half marathon (13.1 miles) and a 10K (6.55 miles), both utilizing portions of the Little Jersey and Swamp Forest trails. The course offers a mix of single-tr..

The Delaware Trail Fest, held at Lums Pond State Park in Bear, Delaware, offers trail running events for all abilities, celebrating the area's scenic outdoor trails. The race features distances of 12 km and 24 km, as well as a 12-hour Lone Wolf solo challenge and a 12-hour 4-person relay. The course..

Forbidden Run Fest is a trail running event held in Wissahickon Valley Park, Philadelphia, PA, celebrating one of the city's most scenic parks. The race offers three distances: 10K, 10 miles, and a Half Marathon+ (approximately 14 miles). The course features a mix of smooth gravel trails, compacted..