Trail Running Calendar United States 2025-2026

The Grills Trail Run, hosted by the Westerly Track & Athletic Club, takes place at Grills Preserve in Westerly, Rhode Island. Scheduled for October 25, 2025, it features two race distances: a 10-mile and a 10K. Both courses start and finish at Grills Preserve, showcasing scenic trails with about 80%..

Howl-o-ween 5k – Schaumburg takes place in Rolling Meadows, IL at Busse Woods. This pet-friendly 5k run/walk follows a scenic, paved, flat out-and-back Busse Woods Trail and is timed by J3 Timing with live results. The event supports animal charities, featuring Fetching Tails Foundation as a partner..

The Chupacabra Trail Run takes place in Waco, Texas, at the Redwood Shelter in Cameron Park. It is part of the Huaco Cuatro Trail Run Series, featuring challenging trails in the Waco area. The event offers multiple race distances, including a 5K and a 15K trail run, as well as virtual options for bo..

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..

The Last Cowboy Backyard in O’Neill, Nebraska, is Ultraverse Supplements’ first Backyard Ultra. The course follows the flat, non-technical Cowboy Trail as an out-and-back, starting and finishing at the O’Neill community center. Each lap is 4.17 miles and starts on the hour with all runners beginning..

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..

The Trick or Treat Trail Run 10K, held annually in Sioux Falls, South Dakota, takes place at Pasley Park along the scenic Big Sioux River bike path. This festive event offers a 10K run, a 5K run/walk, and a Candy Dash for children aged 3-10, featuring a 0.5-mile course. Participants enjoy a fun, fam..

Krug Castle Challenge is a castle-themed running event held at Krug Park in Saint Joseph, Missouri. The weekend offers four options: the Measly Mile, Krug Castle Kinda 5k (three loops = about 4.08 miles), Krug Castle 10K, and the full Krug Castle Challenge—Go all the way. The course loops the park w..

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..

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..

Range of Light Trail Races take place at Millpond County Recreation Area in Bishop, California, offering four distances: 5k, 10k, 33k, and 50k. The courses combine fast dirt roads and tough single-track, with the longer routes looping through the Tungsten Hills to provide strenuous climbs and sweepi..

The Big Elkin Trail Relay is a team-based trail running event held in Elkin, North Carolina, featuring a 5K loop on single-track trails and granite dust paths along the old E&A Railroad grade. The course offers shaded terrain with scenic views of waterfalls, Big Elkin Creek, and Elkin Reservoir. Tea..

The Legend Trail Run invites runners to Sleepy Hollow State Park on October 25, 2025, offering 5 miles, 10 miles, or 13.1 miles. The park covers 2,600 acres of hardwood forest, prairie grassland, and includes the 410-acre Lake Ovid, delivering a scenic woodland-and-lake setting. The course is mostly..

The Mammoth Cave 50K/25K is a trail running event held in Mammoth Cave National Park, Park City, Kentucky. Scheduled for October 25, 2025, it features two distances: a 50K and a 25K. The race takes place on the scenic Bike & Hike Trail, a crushed gravel out-and-back route named after a historic rail..

Great Turtle Trail Run on Mackinac Island, Michigan, wraps up RunMackinac’s four-race series with the Half Marathon and a 5.7 Mile Run (plus Walk and virtual options). The 28th anniversary event showcases late-season Mackinac beauty, with courses that travel shoreline views and interior island trail..

Bare Buns Desert Run is a 5k desert trail race held at Shangri La Ranch in New River, Arizona. The course winds around the ranch, climbing a hiking trail, along a dry wash, and through much of the property. It is promoted as the only nude run in AZ, with racers encouraged to run in nothing but tenni..

The Kansas Rails-to-Trails Extravaganza, held at Celebration Hall in Ottawa, Kansas, is a multi-distance ultrarun on the Prairie Spirit Trail. Distances include 100 Mile, 100K, 50 Mile, 50K, Marathon, Half Marathon, and a 5-Miler, with routes weaving north-south along a crushed limestone trail throu..

Yippee-Ki-Yay is a trail-running event in Council Bluffs, Iowa, offering a 50K ultramarathon, a Half Marathon, and a 10K on the Wabash Trace Nature Trail. The historic rails-to-trail course is a crushed limestone out-and-back, about 90% trail and 10% pavement, with sweeping Heartland countryside vie..

Piedmont Newnan's Autumn Chase is an annual running event held in Newnan, Georgia, featuring a 10k, 5k trail race, and a 1-mile fun run suitable for all ages. The 14th edition takes place at Newnan Utilities Carl Miller Park, offering a family-friendly atmosphere focused on fitness and community wel..

Hilloween is a festive 5K trail run and Keiki Trick-Or-Treat Run held annually at Omao Dirt Track in Koloa, Hawaii. The 5K course features off-road terrain with spooky hills, creepy obstacles, and scenic views of Kauai’s south shore, encouraging participants to wear costumes, with prizes awarded for..