Trail Running Calendar United States 2025-2026

Book It for Books 5k & 10k is a charity running event at Lake Accotink Park in Springfield, VA, benefiting Reading is Fundamental of Northern Virginia (RIF NOVA). The weekend features a 1-mile fun run, a 5k trail out-and-back on the lake’s south side, and a 10k course that runs out-and-back on the n..

Into the Darkness Night Trail Run is the Roanoke Valley’s night-time trail race, returning for its 19th edition on October 25, 2025. The event starts and finishes at Explore Park, Roanoke, VA, with a new course this year. Runners cover about 3.6 miles, beginning with a 0.25-mile asphalt section befo..

Situated in Steelville, Missouri, the Ozark Trail 100 Mile Endurance Run is a point-to-point ultramarathon through the Mark Twain National Forest and Ozark Trail. The course covers 100 miles of continuous single-track with about 12,000 feet of elevation gain, offering stream crossings and wilderness..

2025 Napa Fall Wine Country Marathon, Half Marathon & 10K takes place in Bothe-Napa Valley State Park along Saint Helena Highway in Saint Helena, CA. The course uses lush single-track trails with hills, streams and rocky sections, delivering a rugged and rewarding challenge, set just minutes from Na..

The Quicksilver Trail Challenge, hosted by the Quicksilver Running Club in San Jose, California, is an annual trail running event held in late summer or early fall at Almaden Quicksilver County Park. It features a half marathon, a 10K race, and a free one-mile kids' fun run. The courses traverse sce..

Cheshire Community YMCA 5K Harvest Trail Run in Cheshire, CT, is a race around Ives Farm. The all-ages event winds through fields and trails on the farm, starting and finishing at the remodeled barn. Proceeds support the YMCA’s Cheshire community programs and the Cheshire Land Trust’s revitalization..

Beware The Bear Trail Races take place at Bear Creek Lake Park in Lakewood, Colorado. Organizers offer four options: a 5K, a 15K, a 5K+15K Double, and a Kids 1K. The mostly dirt courses feature single and double-track trails with short, steep climbs, rollers, and mixed terrain designed as a friendly..

RTB Fair Winds 5k/Fun Run is held at Quiet Waters Park in Annapolis, Maryland. The event offers a 5K, a Fun Run, and a Virtual 5K/Fun Run option. Runners traverse a fully paved course through woods and meadows, presenting a scenic park setting.The atmosphere is upbeat and community-minded, with cost..

Womp Romp is a trail race in Hingham, Massachusetts at Wompatuck State Park. A community-driven, volunteer-powered event, it offers two distances: a 10-mile loop and a 50K three-loop course (plus a mile). The route blends single-track, wide trails, and pavement, with about 2 miles of pavement per lo..

The Murder Mile Halloween Horror, marketed as Haunted Half and Sinister Six, is a Halloween-themed running event on private land near Franklin, Tennessee. The format centers on a haunted 1.1-mile loop known as The Murder Mile, with about 340 feet of elevation gain per lap. Participants experience ee..

Fonta Flora 50k and Half Marathon (and Relay) run along Lake James State Park trails in Nebo, NC, with views of the lake and Linville Gorge. The Half is about 13.1 miles with roughly 850 ft of elevation gain; the 50k about 31.5 miles with ~2,400 ft gain, on extensive single-track. Both start and fin..

Georgetown, TX: The Jameson 5K at Southwestern University is the 25th annual trail race on the campus cross‑country course, with in‑person 5K events (including a Southwestern University Student 5K and a 55+ Senior 5K), plus a Mosey and a Virtual 5K. The fundraiser honors Jaysn Flynn Jameson and supp..

The Santa Cruz Island Eco-Extreme Trail Half Marathon is a challenging 13.3-mile trail race held on Santa Cruz Island in Channel Islands National Park, California. Organized by the Ventura County Sheriff's Search and Rescue Upper Ojai Team, this rugged course features steep hills, creek crossings, a..

The Quail Trail 5K is a certified 5,000-meter cross country race held at the historic Pebble Hill Plantation in Thomasville, Georgia. The course features a challenging, hilly terrain with diverse running surfaces including pea gravel, grass, dirt, red clay, and asphalt. This event supports the Pebbl..

Camp Lackawanna Trail Challenge is a trail-running endurance event in Tunkhannock, Pennsylvania (1219 Vosburg-Neck Road). The Ultrasignup listing shows two timed formats: a 6-hour and a 12-hour trail challenge, catering to ultramarathoners and serious hikers alike. The event has been postponed from..

Tussey Mountainback Race Weekend in Boalsburg, Pennsylvania, is an ultrarunning festival (Oct 25–26, 2025) offering the Tussey Mountainback 50-Mile Ultramarathon and 50M Relay, plus a 50K, half marathon, kids’ run, and a 100-mile ultramarathon. The 50-mile course is a USATF-certified loop on mostly..

Among the Trees is an ultramarathon event held in Dousman, Wisconsin, featuring 100k and 50k race distances. Set within the scenic Southern Kettle Moraine Forest along the historic Ice Age Trail, the course offers runners a challenging and picturesque experience amid vibrant fall colors. Both races..

Camp Challenge 5k Trail Run unfolds in the wooded hills of southern Indiana near Bedford. The 5-kilometer course traverses rugged, forested terrain with steep inclines and thrilling descents, testing endurance amid natural beauty. The event blends challenge with a mission: all proceeds fund scholars..

The Philip Barbour Zombie Run is a themed 5K race held in Philippi, West Virginia, at Philip Barbour High School. The course features wooded trails "infested with zombies," creating a fun and spooky atmosphere for participants. In addition to the main 5K run/walk, there is a Zombie Fun Run designed..

Run With Scissors is a running event held in Boston Township, Ohio, featuring a half marathon, full marathon, and double marathon. The race starts at Kendall Lake Lodge and courses through the scenic Cuyahoga Valley National Park. The half marathon follows an out-and-back route, while the full and d..