Trail Running calendar near Wilmington 2026-2027

An eight hour endurance run at Terrapin Nature Park where participants complete 2.8 mile laps to earn surprises placed in a personal stocking. Awards are given to the male and female with the most laps.

A December trail running event at Clarence Schock Memorial Park in Lebanon, PA, with marked 5- and 10-mile courses and significant elevation gain. Proceeds fund park projects and timing is handled by Pretzel City Sports.

Experience a fast and flat end of year ultra at Cooper River Park. Run a paved 3.75 mile loop featuring views of the Philadelphia skyline and access to a fully stocked aid station throughout the day.

Naked Nick is a low-fee winter trail run at Blue Marsh Lake offering 25K and 50K on rolling single-track and gravel. Aid every 3 to 4 miles, manual timing, and a traditional German-style finisher memento.

Experience the rolling hills of Fair Hill Natural Resource Management Area during this winter trail event. Choose between 25K or 50K distances on beautiful single track trails with heated facilities and fully stocked aid stations.

A 50 km trail run at Hashawha Environmental Center in Westminster MD, featuring varied single-track, open fields, stream crossings and 5 aid stations. Entry for 2027 uses a lottery opening January 1, with indoor facilities and hot post-race..

A low swag trail ultramarathon at Blue Marsh Lake near Leesport PA offering 20 and 40 mile options on a mostly single track lollipop course. The event emphasizes an affordable entry, frequent aid stations, and simple tear off bib timing.

The Rat Race 50k is a 100% off-road ultramarathon at Wells Mills Park with an 8-mile loop plus three 10k loops, chip timing, finisher medals and age-group awards; the series also includes shorter trail races and themed events.

Genesee Valley Ultra is a timed loop trail event at Genesee Valley Outdoor Learning Center in Parkton, MD. Runners choose 24 hour, 12 hour, or 6 hour formats to complete as many laps as possible on a 2 mile loop, with chip timing and awards..

A weeklong track ultramarathon at Cooper River Park with events from 6 hours to 144 hours on a USATF-certified 399.519 m track, chip timing, catered meals, vegan-friendly aid, and awards for milestone distances.

A turtle themed 5K at Hopkins Farm Brewery in Havre De Grace raising funds and awareness for the Susquehannock Wildlife Society. The trail race includes wooden participant medals, costume prizes, and an after party with live music.

A trail marathon and half marathon in Wissahickon Valley Park on April 10, 2027, featuring technical single track trails and significant climbing. The event includes race day bib pickup, live accordion music and a post race pizza party.

A last person standing endurance race in York, PA where runners repeat hourly loops until one remains. Entries include a designated parking and crew area, an event shirt, and a certified distance card.

A multi-distance event in Lewes, Delaware with 5K, 10K and half marathon options plus race walk and heavy march categories. The weekend includes an educational exhibit, vendors and live music while supporting wounded warriors and homeless v..

ChesLen Chase on 05/08/2027 in Coatesville PA features a 5K trail run and a 2-mile fun run-walk, youth categories, member discounts, and a post-race party with music, craft beer, food truck fare, and awards.

A morning **5K** held as part of the Fair Hill Scottish Games on May 15, 2027, in Elkton, MD, with on-field entries accepted, an entry fee that includes admission, and cash prizes plus trophies for top finishers.

Tough Mudder Philly on May 22, 2027 is an outdoor obstacle mud run with 15K and 5K course options, Infinity laps, and a Mudder Village for spectators. The course crosses open fields, wooded sections, riverbeds, and includes cold water and t..