Trail Running calendar near Wilmington 2025-2026

Loopy Looper is an ultra running event held at Cooper River Park in Pennsauken, New Jersey, featuring a fast and mostly 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 a..

The MD Heat Trail Race, held in Elkridge, Maryland at the Patapsco Pickall Area, offers challenging trail running options of 25K and 50K distances. The course features rolling single-track trails with over 2,000 feet of elevation gain, including technical rocky sections, two river crossings, and a s..

The Slopeside Slumber Party is a nighttime trail running event held at Roundtop Mountain Resort in Lewisberry, PA, on August 16, 2025. Participants can choose between a main race, offering three hours to complete as many loops as they can on a challenging 1.5-mile course with 600 feet of elevation g..

The 5K Run for Thorncroft is an exciting event scheduled for August 28, 2025, in Malvern, PA. Participants can choose from several activities, including a 5K Trail Run, a 5K Walk, and a One-Mile Move-As-You-Please. The event is designed to be inclusive, welcoming dogs to join in the fun. After the r..

Trails 4 Tails in Hanover, PA, is a trail running event held at scenic Codorus State Park, featuring a 5.72-mile loop course around Lake Marburg with single track trails and shoreline views. The event offers three race options: a 40-mile ultra consisting of seven loops with approximately 4,200 feet..

The 13th annual Blood, Sweat & Tears Run in Mount Gretna, PA, promises to be an exciting event featuring three scenic courses along the Lebanon Valley Rails to Trails. This timed event ensures safety with police support and volunteers. Participants can look forward to post-run festivities, including..

The Mountain Lakes Trail Run & Walk in Princeton, NJ, is a scenic event held at the Billy Johnson Mountain Lakes Nature Preserve, benefiting the Friends of Princeton Open Space. It features a 5K+ trail run and a 3K walk, both traversing a mix of paved park trails, unimproved service paths, and singl..

The Run the Vineyards - White Horse 10K/5K is an annual running event taking place at White Horse Winery in Hammonton, NJ. Scheduled for September 14, 2025, the event features a scenic 10K and 5K race, along with a 1-mile walk. Participants can enjoy a flat course through vineyards and country roads..

The Cancer Warriors 5k is an annual running event dedicated to raising funds and awareness for cancer research. Scheduled for September 20, 2025, this event has successfully raised over $38,000 to support those affected by cancer. Participants can register as runners or "ghost runners," allowing ind..

Ultra Trail DE is a 6-hour trail running event held at 2900 Montchanin Road in Wilmington, Delaware. The race features a challenging roughly 6-mile loop with about 700 feet of elevation gain per lap, set on private scenic trails that include creek crossings, singletrack, rolling hills, and unique la..

The Conestoga Trail Run - 10 Tough Miles is a challenging trail race held in Holtwood, Pennsylvania, known for its rugged terrain and scenic views. Celebrating over 30 years, this event features a hilly course with rocky paths and stream crossings, making it suitable for experienced trail runners ag..

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 13.1-mile half marathon consisting of two loops and a 6.55-mile 10K with one loop. The course utilizes portions of the Little Jersey and Swamp Forest trails,..

Run-a-Muck is an annual 5K running and walking event held in the scenic Willistown countryside, featuring a cross-country trail with diverse terrain. Participants can choose to run or "muck" (walk) the course, making it accessible for various fitness levels. The event offers a festive atmosphere wit..

Blackout is a nighttime 10K trail race held in Emmaus, PA, organized by The Running Kind. The event takes place on rugged, mountainous terrain in South Mountain, featuring over 1,000 feet of elevation gain. Runners can participate in a "Lights On" edition, starting at 5:00 PM before darkness falls,..

The Blues Cruise is a 50K trail ultramarathon held near Reading, Pennsylvania, celebrating its 20th anniversary in 2025. The 31-mile loop course circles Blue Marsh Lake, featuring varied terrain including fields, rolling hills, single track, and less than half a mile of public road. A notable challe..

The Lehigh Gap Nature Center 10k is an annual trail running event held in Slatington, Pennsylvania. The race features a challenging loop course that showcases the natural beauty of the Nature Center, including trails along the Lehigh River, fern-lined paths, and technical single tracks. Participants..

The Hainesport Endurance Run is a multi-day ultramarathon event held at Hainesport Township Municipal Park in New Jersey. It features a flat, paved loop course of just under one mile, certified by USA Track & Field, with an alternate 1.2-mile loop available if needed. Participants can compete in var..

BadgerPalooza is an ultra marathon event hosted by the Williamstown Badger at Autumn Lake Winery in Williamstown, New Jersey. Participants can choose from various race formats, including a 24-hour run, 12-hour run, and 6-hour run, with options for relay teams. The main event consists of running a 5K..

The Delaware Trail Fest, held at Lums Pond State Park in Bear, Delaware, is a trail running event celebrating the state's scenic outdoor trails. It offers multiple race options including 12 KM and 24 KM trail runs, as well as a 12-hour Lone Wolf solo challenge and a 12-hour 4-person relay. The cours..

The MuleSkinner Endurance Races take place in Upper Black Eddy, Pennsylvania, featuring distances of 50 miles, 50K, marathon, and half marathon. The course primarily follows the scenic, non-technical towpaths along the Pennsylvania side of the river, offering beautiful views and an easy trail experi..