Trail Running Calendar United States 2025-2026

The Raven 10K is an annual trail running event held at Raven Run Nature Sanctuary near Lexington, Kentucky. The race covers a 10K (6.2 miles) course through a scenic 734-acre nature sanctuary featuring meadows, woodlands, streams, and historic sites. The event offers both an in-person race with a li..

Run for Nature in Lowell, MA, is a community-focused running event held at Shedd Park, featuring a 5K Run/Walk, a 10K Trail Run, and a Kids 1-Mile Fun Run/Walk. The course traverses scenic double- and single-track trails through Shedd Park and Rogers Fort Hill Park, including a stretch along the Con..

The Iowa Trail Run Series: Jester Park takes place in Granger, Iowa, along the scenic shore of Saylorville Lake within Jester Park. Runners can choose between a 5K or 10K race on varied trail surfaces including gravel, dirt, and grass. The course offers a unique experience with natural surroundings..

The Vermont 50 Ultra Run is an annual endurance event held at Ascutney Outdoors in West Windsor, Vermont, typically on the last weekend of September. Established in 1993, it features a challenging and scenic course through Vermont’s landscape. The event offers multiple race options including a 50-mi..

The Fox Trot 5k in Keswick is a scenic cross-country race held at Merrie Mill Farm & Vineyard. The event features a 5k course that includes a mix of flat gravel, dirt, paved roads, and some notable hills, offering a challenging yet picturesque run around the winery property. Participants can also ch..

The Bobcat Trail Challenge at Crosscut is a trail running event held at the Crosscut Mountain Sports Center in Bozeman, Montana. The race features a challenging 5km cross-country ski loop course, with options to compete in 5k, 10k, or 20k distances. Participants can also join as part of a 2 or 4-per..

The Sawatch Ascent 50k is a challenging high-alpine trail race held in Nathrop, Colorado, showcasing the stunning Sawatch Range. Covering 33 miles with 7,000 feet of vertical gain, the course features a mix of 26 miles of singletrack, paved, and gravel roads, including 12 miles on the Colorado Trail..

The AZT North Rim Ramble is a scenic running event held near Jacob Lake, Arizona, featuring marathon, half-marathon, and 10K distances. The half-marathon and marathon courses loop through the Kaibab Plateau’s forest roads and singletrack trails, showcasing stunning views of the Grand Canyon’s East R..

The Heritage 50K Trail Run, held at Heritage Park in Adrian, Michigan, offers a scenic ultramarathon experience through beautiful fall foliage. Participants can choose between a 50K (31 miles) or a half marathon (13.1 miles) on well-marked trails featuring paved paths, service roads, single and doub..

The Unlimited Breadsticks Trail Race Half Marathon is a 13-mile trail running event held in Victor, New York, starting at Parkview Fairways and finishing near Valentown. Scheduled for Sunday, September 28, 2025, this race offers a unique trail experience capped at 200 participants. Runners enjoy aid..

The Farm to Farm Ultra is a scenic ultramarathon held in Freeport and Brunswick, Maine, featuring distances of 25K, 50K, and 50 miles, along with relay options. The course primarily follows paved roads with rolling hills and includes about two miles of runnable trail per 25K loop, connecting Wolfe's..

The Assault on Yonah Mountain is an annual trail event held in Cleveland, Georgia, featuring a challenging 2.25-mile ascent from the base to the summit of Yonah Mountain. Participants run, hike, or ruck up 1,650 vertical feet over a course that includes gravel roads, rocky sections, and steep single..

Twisted Roots is a trail running event held at High Cliff State Park in Sherwood, Wisconsin, featuring both half marathon and full marathon distances. Set against the scenic backdrop of Lake Winnebago and the Niagara Escarpment's majestic cliffs, runners experience a mix of technical single tracks a..

The Trailblazer Race in Mountain View, CA, is an annual family-friendly event featuring 10K and 5K runs, plus a 3-mile walk along the scenic Stevens Creek Trail and Shoreline Park. The courses are fast, flat, and stroller-friendly, offering beautiful views of wildlife, salt ponds, and surrounding mo..

The IronHike Endurance Series, held at Mohawk Mountain Ski Area in Cornwall, Connecticut, is a multi-day endurance event featuring rugged, scenic courses designed to challenge participants with significant elevation gains. Spanning from October 2 to 5, 2025, the series offers various timed events ra..

The NJ Trail Series One Day is a multi-day ultrarunning event held at the Sussex County Fairgrounds in Augusta, New Jersey. Taking place from October 2 to 5, 2025, it offers a variety of race options including 72, 48, 24, 12, and 6-hour timed races, as well as marathons and 50K distances. The course..

The Hell Creek 100 is an ultramarathon event held at Wilson State Park near Sylvan Grove, Kansas, featuring challenging courses on the Switchgrass Mountain Bike Trail. The event includes multiple distances: the Pure Hell 140 (140 miles), 100-mile, 100K, and 20-mile races. The course is rugged single..

The Red Barn Challenge is an annual ultrarunning event held at Marzella Farm in Lykens, Pennsylvania. The 2025 edition marks its 6th year, featuring 24-hour, 12-hour, and 6-hour race options on a one-mile loop course composed mostly of grass and mulch, with about 70 feet of elevation gain per mile...

The Horton Trail Race is a family-friendly nighttime running event held at Shelby Farms Cross Country Course in Memphis, Tennessee. It features a 2K Fun Run and a 5K Trail Race, both designed to accommodate runners of various ages and skill levels. Participants can choose between options that includ..

The Hanging Flume 50K is an ultrarunning trail race held in Uravan, Colorado, starting and finishing at the historic Uravan Ballpark. The 50-kilometer course features a large loop that traverses abandoned mining two-track roads and scenic desert single-track trails near the confluence of the San Mig..