Trail Running Calendar United States 2025-2026

Join a memorial trail marathon in San Diego on May 2, 2026, honoring Dingneng Wang at Los Peñasquitos Canyon Trail. This self supported course offers scenic canyon views; register free by April 30 for an official result.

Take on The Big Deal at Great Seal on May 2, 2026 at Great Seal State Park in Chillicothe OH for an epic day of trail running. Pick from 100 mile, 100k, 20 mile or 5k distances and tackle rugged single track loops with big climbs.

Explore the Flint Hills on the Heartland 50 with 50 mile, 50K and 25K out and back races over backcountry gravel roads through tallgrass prairie. Expect rugged scenery, a tri blend finisher shirt and free race photos to celebrate your finis..

Glorieta Twelve Hour Endurance Run is a destination trail event at Glorieta Adventure Camps in Glorieta, NM, at the southern terminus of the Sangre de Cristo Mountains. Runners (and optional 12-hour ruck entrants) have 12 hours to complete..

The Donald Dash Trail Run is a popular trail running event held at Donald County Park in Mount Horeb, Wisconsin. It offers two race distances: a 5K for beginners and a more challenging 15K for experienced runners. The course features divers..

Run under the stars on rolling trails lit by hundreds of LED tea lights at the Moonlight Bootlegger 5K in Hagan Stone Park. Bring a headlamp and enjoy live bluegrass, a commemorative moonshine mason jar and post race cocktails or mocktails.

Test your grit in Gentry Arkansas with Flint Creek Endurance's 1 mile loop elimination race where each loop must be finished within 20 minutes. Pay $20 to enter and last runner standing wins the pot; register by April 30.

Riverlands 100 & Relay is a trail ultramarathon held in Turner, Maine, on May 2–3, 2026. The event centers on a 100‑mile race with a relay option, inviting solo runners and teams to tackle the course over two days. The race information page..

DENFIT ULTRA is held in Cape Vincent, New York (ZIP 13618). The event offers two ultra distances: DENFIT ULTRA 50k and DENFIT ULTRA 100k, inviting endurance runners to push their limits. The page emphasizes a raw, no-nonsense atmosphere wit..

Run the Miwok 100K from Stinson Beach through scenic Marin single track trails and big climbs. Run solo or as a four person relay; this UTMB index race and Western States qualifier champions sustainability.

Run a rugged 57 mile trail through Ocala National Forest on the Florida National Scenic Trail, passing lakes, prairies and dense pine and hardwood forest. Crew support is required and runners should expect heat, humidity and wildlife encoun..

Ozark's Mountain Challenge invites hikers to summit Mudlick Mountain eight times for roughly 21 miles and nearly 8,000 feet of gain. Expect steep rugged trails, a 12 hour window to finish, and shuttle returns to the base.

Tackle a scenic 6 mile rim to rim run through New River Gorge with a dramatic 1,300 ft descent and climb, a river crossing, and a short trail finish at Adventures on the Gorge. Closed roads, chip timing and a post race brunch make it a day..

Choose 24 hour, 12 hour or 6 hour timed loops at White Lake State Park in Tamworth, NH on May 2, 2026. Enjoy scenic 2 mile loops with some technical trail and beach sections; this is a cupless event so bring your own hydration.

XTERRA New Jersey is an off-road multisport event held at the scenic Wawayanda State Park, featuring over 40 miles of trails and a clear lake. Part of the XTERRA World Tour, it offers a variety of races including trail runs (5K to 42K), gra..

Explore rugged single track and lake views at the Lake of the Ozarks Endurance Runs on May 2, 2026, offering a 5 mile, 25K and an adventurous Traverse that adds lake paddling. Celebrate at TrailFest with food, music, awards and vendors.

TutHell 50K on May 2, 2026 in Sioux Falls challenges runners to complete a 0.31 mile loop 100 times around Tut Hill. Entry is essay based and donation based fees support a vetted nonprofit, with aid at the hilltop and live timing.

Firelane Trail Trial is a hill-climbing time-trial held in Forest Park, Portland. The 4.45-mile out-and-back course runs up Firelane 1 to the top and back, with 1,266 feet of total gain and loss (about 2.23 miles uphill with 979 feet gain)...

Run scenic dirt trails in Greenland Open Space near Pikes Peak with 50K, 25K, 8 Mile and 4 Mile options, highlighted by the 2026 RRCA National 50K Championship. Expect sweeping views, solid race swag and a lively trail day atmosphere.

Run for Kids Challenge at Oak Mountain State Park The Run for Kids Challenge is an annual trail running event held at the Cedar Pavilion in Oak Mountain State Park. The event includes the following distances: 10K 12-Hour Challenge Kids Hal..