Trail Running calendar near Thornton 2026-2027

A late November 2026 community 5k at Killens Pond State Park offering a 5k run walk and a competitive walking 5k with chip timing, age group awards, long sleeve shirts, and a post race refreshment selection.

A trail 6K through Institute Woods with a non-competitive 3K option for paces over 15 minutes per mile. Registrations are limited to 200, a fee applies, and post-run refreshments are provided.

A looped trail event in Holmdel Park with a roughly 4.65-mile lap, varied terrain, RFID lap timing, a single start/finish aid station, and proceeds supporting MissionCleanWater.

A community trail race near Mt. Gretna with 5 mile and 10 mile courses on marked singletrack. Proceeds support park trail maintenance and education center improvements.

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.

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 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.

Tough Mudder - Philly on May 22, 2027 at Plantation Field features 15K and 5K obstacle courses across trails, fields, and riverbed crossings. Event options include Infinity laps, VIP and group packages, spectator access, and volunteer roles..

Trail runs in Middlesex County near Edison with a secret start, offered distances around 2 and 5 miles, a post-run social, and a requested canned food donation; registration fees are listed and volunteers receive event items.

A hash-style trail event in Middlesex County with a 5-mile trail and a 2-mile group run near Edison, NJ. The day includes a post-run social for over-21s, volunteer giveaways, a waiver requirement, and a canned food donation request.