Wild Trail 10K - Thurmont

Mountain Creek Mayhem takes place at Pine Grove Furnace State Park in Gardners, PA, within Michaux State Forest in the northern Appalachians. The event offers 50K, 20-Miler, and Half Marathon distances, featuring flowy single-track, ridgelines, rocky descents, and sweeping views. Elevation gains run..

River's Edge Endurance Challenge is a nonprofit running event held at Brunswick Middle School, Maryland. The lineup includes a 5K (3.1 miles), a 3-Hour Endurance Race, and a 6-Hour Endurance Challenge. The largely trail-based course runs on the River's Edge Trail System, with about a mile on school..

Hauser Hill Spiked Apple 5k takes place in Biglerville, Pennsylvania at the Hauser Hill Event Center, a 172-acre ridge-top venue in apple country. The chip-timed 5K Run/Walk starts and finishes at the winery on a cross-country course with uneven footing and gentle inclines, offering vineyard views a..

The Rick O'Donnell Memorial 5 Mile Trail Run and Ultra Challenge is held at Milkhouse Brewery at Stillpoint Farm in Mount Airy, Maryland. The event offers three ways to compete: a 5-mile trail run, a 4-hour Challenge, and an 8-hour Ultra Challenge. The course is a single, hilly 5-mile loop through f..

Boulder Dash at Pinesburg Quarry is a running event hosted by Martin Marietta in Williamsport, Maryland. It offers a 5 Mile Challenge, a Family Friendly 5K, and a 1 Mile Fun Run for all levels. The 1 Mile Fun Run and 5K travel on rolling roads and packed gravel around the quarry; the 5 Mile goes int..

Froggy Hollow 5 & 9 presented by Altra is a Charm City Run signature trail ultra held at Little Bennett Campground in Clarksburg, Maryland, inside Little Bennett Regional Park. The event includes 5-Hour Challenge, 5-Hour Relay, 9-Hour Challenge, 9-Hour Relay, and More Than a 4-Miler, all based on a..