Trail Running calendar near Williamsport 2025-2026

We have found 82 Trailruns within 80 miles of Williamsport. See below where and when you can find the races.

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..

The Laurel Highlands Ultra - Fall Classic is a challenging 50K trail race held in Somerset, Pennsylvania, along the scenic Laurel Highlands Hiking Trail. The 2025 event features a point-to-point course starting at Laurel Summit State Park and finishing at Rt 56 in Seward, showcasing rugged terrain w..

The Brandy Station Battlefield 10k is a trail running event held at Brandy Station Battlefield in Virginia. The course combines cross country terrain with gravel dirt roads, featuring slight elevation gains but no major climbs. Runners can choose between 5k and 10k distances, with the 10k route bein..

The Lake & Leaf Shuffle is a trail running event held at Deep Creek Lake State Park in Swanton, Maryland, typically scheduled in late September to coincide with peak fall foliage. Participants can choose between a 6-mile single loop or a 12-mile double loop on scenic trails, offering a challenging a..

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..

October 2025

The Chernisky Ghost Town Trail-a-thon, held in Ebensburg, PA, is a multi-distance running and biking event set along the scenic Ghost Town Trail and C & I Extension. Participants can choose from a marathon (26.2 miles), 15-miler, 5k, or a fun "Couch Potato 0.0k" event. The marathon and 15-miler star..

The Fall Harvest 5k is a scenic trail race held at Claude Moore Park in Sterling, Virginia. Set amidst the vibrant colors of autumn, the course features forest paths and leaf-covered trails, offering a picturesque experience for both runners and walkers. This event is part of the Run Your PRCS Parks..

The Full Distance 10k is a scenic trail running event held at Locust Shade Park in Triangle, Virginia. The course features a mix of trails and pavement, with about 40% paved and some hills, consisting of four loops for the 10k distance. This chip-timed race welcomes both runners and walkers and is p..

The Trails 4 Miles is an annual trail running event held at Sherando Park in Stephens City, Virginia. The main race is a challenging 4-mile course featuring mixed surfaces, including paved paths and wooded trails through the scenic Sherando Park Mountain Bike Trails. Runners experience beautiful fal..

MoCo Dems 5K Fall FunRun is a 5K run/walk at Agricultural History Farm Park in Derwood, MD. Organized by the Montgomery County District 15 Democratic Caucus, it offers a 5K for adults, a Youth 5K, and a free option for youth 10 and under. The course is a natural trail through the park, with water st..

Rocky Gap 25K, 50K, and Relay Trail Run takes place at Rocky Gap State Park in Flintstone, Maryland, in the mountains of western Maryland. The course uses three loops—Loop A (6.5 miles), Loop B (4.4 miles), Loop C (5.2 miles). The 25K runs each loop once (about 16 miles); the 50K runs them twice (ab..

The Rick O'Donnell Memorial 5 Mile Trail Run & Ultra Challenge takes place at Milkhouse Brewery at Stillpoint Farm in Mount Airy, Maryland. In its 13th year, the event offers three ways to test endurance: a single 5-mile trail loop, a 4-hour challenge, and an 8-hour ultra challenge. The hilly course..

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..

The Westover 5k & 10k is a flat, scenic race at Bluemont Park in Arlington, Virginia, along the W&OD Trail. The course is an out-and-back, with the 10k running out-and-back twice. The event is part of Bishop’s Events’ Year-Long 5k/10k/Back of the Pack Series and Fall Series.Walkers and strollers are..

Located in Bel Air, MD (Ma and Pa Heritage Trailhead), The Husky Run 5K is a community-focused running event along the scenic Ma and Pa Trail. The 5K is designed for all levels—perfect for beginners, comeback runners, and everyone in between—offering a Sofa to 5K Walk & Run. Participants can expect..

EX2 Adventures hosts the Fall Backyard Burn Trail Run at Lake Fairfax Park in Reston, Virginia. The event offers 5-mile and 10-mile trail options on a mostly singletrack course with a short prologue and minimal pavement, featuring views of Lake Fairfax, challenging rocks and roots, and a few short c..

Run For Your Life 5k is a cross-country 5K Run/Walk held at Verdun Adventure Bound in Rixeyville, Virginia (17044 Adventure Bound Trail). The race takes place on Verdun’s cross-country course across a 67-acre woodland setting, offering a true 5K course suitable for runners and walkers. The event fea..

Patapsco Valley 50K is an annual ultramarathon held near Baltimore, MD, with race headquarters at CCBC-Catonsville. The in-person event offers a 50k and a 25k, plus virtual options, set on a scenic, historic, well-marked trail course through Patapsco Valley State Park. The race features five aid sta..

The Halloween Horror 10k is a trail running event held at Conway Robinson State Forest in Gainesville, Virginia. The race features a challenging loop course through forest trails with some technical terrain and minor hills, with the 10k consisting of two laps of the 5k route. Participants receive a..