Trail Running Calendar Delaware 2025-2026

The Murderkill Ultramarathon, held at Killens Pond State Park in Felton, Delaware, offers 50-mile, 50K, and 12-hour race options on a mostly dirt 3.1-mile loop trail. The course is relatively gentle with about 80 feet of elevation gain per loop, featuring shaded paths, some roots, rocks, and a footb..

Ultra Trail DE is a trail running event held in Wilmington, Delaware, on private property owned by Longwood Gardens. The race features a challenging 6-hour format on a roughly 5-mile loop course with about 700 feet of elevation gain per lap. The course offers a mix of scenic singletrack trails, cree..

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..

The 27th Milford Cross Country Booster Reindeer Stampede 5k is a festive running event held at Killens Pond State Park in Felton, Delaware. This 5k run/walk features chip timing with MYLAPS BibTag and offers competitive walking and running categories. Participants receive long sleeve tee shirts and..

The Race4Warriors Half Marathon is part of a multi-distance event held in Lewes, Delaware, featuring 5K, 10K, and Half Marathon challenges. The race supports Wounded Warriors and Homeless Veterans and aims to unite military and civilian communities. The USATF-certified course starts and finishes at..