Trail Running Calendar United States 2025-2026

Northwoods Winter Marathon and Half Marathon Championships take place in Duluth, Minnesota, as part of the Duluth Winter Trailrunning Series. Runners traverse the fat bike trail network in Lester Park, with the Hawks Ridge fat bike trail offering dramatic high-elevation views of the City and Lake Su..

The Lost Coast 55K is a challenging ultramarathon held in Humboldt County, California, starting at the Horse Mountain Creek Trailhead near Whitethorn. Covering 34.3 miles with about 6,500 feet of elevation gain, the course features a mix of rough backcountry gravel roads and quiet pavement. The rout..

The Great Scorpion Trail Run, held in Meridian, Mississippi at Bonita Lakes Park, offers runners three distance options: 50K, 25K, and 12.5K. The course features a challenging mix of single track and jeep trails with roots, rocks, and hills, providing a scenic experience through the wooded areas aro..

The Resolution Run/Walk is a unique endurance event held at Holland Park in Greenville, SC, offering 3, 6, and 12-hour run/walk options on a scenic 2-mile loop. Participants set their own pace, completing as many laps as they choose, symbolized by dropping a small rock into a personal mug for each l..

Athens Big Fork Trail Marathon & 17 Mile Blaylock Creek Fun Run take place in Mena, Arkansas, on the Athens-Big Fork trail. The race offers a full marathon and a 17-mile option, both on an out-and-back, well-marked course that starts and finishes at the Big Fork Community Center. Marathon runners en..

The Frozen Trash Panda is a trail running event held at Monte Sano State Park in Huntsville, Alabama, as part of the Winter Wild Thangs Trail Series. Scheduled for January 3, 2026, it offers two race distances: a 10K and a half marathon. The course features scenic mountain views, creek crossings, an..

WinterRock, held in Independence, KS, offers 25K and 12K options along the Elk River Hiking Trail from the Outlet Channel Shelter. The route is technical and predominantly single-track, an out-and-back through limestone bluffs, rock formations, and scenic vistas. The event features a lean, unmanned..

The Resolution Run is an endurance event at Cameron Park in Waco, Texas. Distances include 50K, 25K, 10 Mile, 10 Mile Ruck, and 8K. The course features an 8K loop through Cameron Park’s valleys and hills on rooty, rocky single-track trails, with about 450 feet of elevation per loop, starting and fin..

Yankee Springs Winter Challenge takes place in Middleville, Michigan, within Yankee Springs State Recreation Area. The event features four distances: 5k, 10k, 25k, and 50k. The 5k, 10k, and 25k are single-loop courses, while the 50k is two loops of the 25k route, all on rolling single-track trails t..

Set in Kickapoo State Recreation Area, Oakwood, Illinois, the Siberian Express Trail Race is a 7.45-mile, 95% trail course that winds east from the park into woodlands, featuring steep hills, creek crossings, and wildlife sightings. The event emphasizes a wintry Midwest experience, with a time limit..

Croom Zoom is a trail running event held in Brooksville, Florida, inside Withlacoochee State Forest. Runners tackle three distances on the Croom Park trails: 50K, 20M, and 10M. The course centers on a main 10-mile loop with a starter loop for the longer distances, weaving through oak hammocks and Fl..

Scarface Mountain Trail Run, from 4 Peaks Racing, features 10k, 5k (3.35 miles), and a 1-mile fun run at Usery Mountain Regional Park in Mesa, AZ. The course runs under Pass Mountain (Scarface Mountain) on the Blevins Trail through desert trails, with a Wild West Arizona theme. The event donates 100..

The Snowy Owl 10 Mile is a trail running event held at York River State Park in Williamsburg, VA. The course features a mix of technical single-track trails, dirt fire roads, a short paved downhill finish, and scenic boardwalk sections, covering 10 miles with about 600 feet of elevation gain. Runner..

The Willis River event in Cumberland, VA, offers runners three distance options: 50K, 35K, and 20K. The 35K course follows much of the Willis River Trail, featuring stream crossings, rolling hills, and guaranteed wet feet. The 50K combines the 35K route with an additional 10-mile Bear Creek segment,..

The Vista View 360 Ultramarathon & Relay is a 6-hour timed running event held annually at Vista View Park in Davie, Florida. Participants run a 1.24-mile loop trail composed of dirt and mulch, completing as many laps as possible within the time limit. Runners can compete individually to become ultra..

Del Dios Trail Race, billed as The Race of the Gods, unfolds at Lake Hodges in Escondido, California. The event offers four distances: 5K (3.1 miles), 10K (6.1 miles), Half Marathon (13 miles), and a 50K (31 miles). Courses traverse dirt service roads and single-track trails, with elevation gains ra..

Atlanta Fat Ass is an annual, low-key ultramarathon held at Sweetwater Creek State Park in Lithia Springs, Georgia. The event offers 50K and 25K options and promotes a post-holiday, no-frills atmosphere that GUTS describes as “burn off those pounds.” Runners tackle six laps on white trail loops (cou..

Frozen: H3 is an ultratrail race in the Francis Marion National Forest near Charleston, South Carolina, hosted by Palmetto Ultras and presented by Billy Simons Real Estate & The Foot Store. Based in Bethera, it offers 100M, 50M, 50K, 25K, Night 25K, and 10K distances. Runners tackle looped Jericho H..

The Frozen Gnome is a challenging winter trail running event held in Crystal Lake, Illinois, at Veteran Acres park. Featuring a "Triple Black Diamond" rated course, the race offers a 50K ultra run and a 10K race, both run on a scenic 10K single-track loop through Veteran Acres and Sterne’s Woods. Th..

Desert Runner Trail Series, staged by Aravaipa Running, centers around Phoenix with Queen Creek, AZ as a hub and other valley locations. The Spring Pass offers four core tiers: Hummingbird Mini (5K), Quail Short, Roadrunner Middle, and Owl Trail, plus Hawk Ultra distances (50K–60K) on select courses..