Trail Running calendar near Flagstaff 2025-2026

We have found 21 Trailruns within 80 miles of Flagstaff. See below where and when you can find the races.

The Blackout Night Runs, organized by Aravaipa Running, take place at Fort Tuthill County Park in Flagstaff, Arizona. This night trail running event offers three distances: 27K, 13K, and 6K, winding through ponderosa pine forests above 7,000 feet elevation. The course features a mix of narrow single..

The Flagstaff Extreme Big Pine Trail Runs, held annually at Fort Tuthill County Park in Flagstaff, Arizona, offer a scenic trail running experience through ponderosa pines at elevations above 7,000 feet. The event features multiple distances: 50K, 27K, 13K, and 6K, accommodating both ultra runners a..

August 2025

Groovin' in the Aspens is a trail running event held at Fort Valley Trailhead in Flagstaff, Arizona. Offering distances of 6K, 10K, 20K, 30K, and 50K, the race courses wind through scenic pine and aspen forests on a mix of single track and jeep roads. The 6K is a relatively flat, easy green loop aro..

September 2025

The Mogollon Monster 100 is a challenging trail ultramarathon held near Pine, Arizona, about 90 minutes northeast of Phoenix. The main event is a rugged 100-mile race featuring approximately 17,000 feet of elevation gain, with climbs and descents up to 45% grade along the scenic Mogollon Rim, rangin..

The Flagstaff to Grand Canyon Stagecoach Line Ultra is a challenging endurance event hosted by the Arizona Trail Association, featuring a 100-mile run, a 55K run, a 100-mile mountain bike race, and relay options. The race takes place in northern Arizona, starting in Flagstaff and finishing at the Gr..

Babbitts Backyard Ultra is a unique endurance running event held near the iconic SP Crater in Flagstaff, Arizona. Participants run a 4.167-mile loop every hour on the hour, combining dirt trails and roads with about 150 feet of elevation gain, offering stunning views of the crater and surrounding pe..

Flagstaff Sky Peaks is a mountain trail running event held in Flagstaff, Arizona, staging from the Fort Valley Trailhead near Snowbowl Road. It offers four race distances: 50 miles, 50 kilometers, 26 kilometers, and 10 kilometers. The courses feature a mix of single-track trails and forest roads thr..

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..

October 2025

The Flagstaff Marathon, presented by Cambium Wealth and Legacy Strategies, is a premier running event taking place in Flagstaff, Arizona. Scheduled for October 4, 2025, it features a variety of races including a full marathon, half marathon, 10K, and a Kids Kilo. The event is organized by the Coconi..

Saddles 100 is an ultramarathon event held in Prescott, Arizona, offering runners the choice of a 50- or 100-mile loop course. The race features some of the best local trails, providing a challenging and scenic experience. In 2025, the course will be run counterclockwise, with 50-mile participants c..

The Soulstice Mountain Trail Run is an annual trail running event held in Government Prairie near Flagstaff, Arizona. Scheduled for October 11, 2025, it offers multiple race distances including a 30K, an 11.2-mile long course, a 10K, and a kids dash. The race is organized by the Northern Arizona Tra..

The Red Rocks of Sedona Trail Races, held in Sedona, Arizona, offer a scenic and challenging point-to-point trail running experience on the area's iconic Southside trails, including the famous Hi-Line trail. Scheduled for October 18, 2025, the event features three distances: a Mountain Marathon, a 2..

The Man Against Horse Race, held annually in Prescott, Arizona, is a unique endurance event where runners and horseback riders compete simultaneously on the same courses. The race features three distances: a challenging 50-mile loop with about 7,300 feet of elevation gain and loss, traversing divers..

The Elden Ridge Run is a half marathon trail race held in Flagstaff, Arizona, starting at the Sandy Seep Trailhead. The course features scenic meadows, ponderosa pines, and a challenging climb up Mt. Elden via Christmas Tree and Elden Lookout trails.Runners enjoy panoramic views of Flagstaff and sur..

The Grand Canyon Trail Half Marathon and 5k is a scenic trail running event held near the South Rim of the Grand Canyon in Tusayan, Arizona. The half marathon covers approximately 13.1 miles through the rugged terrain of Kaibab National Forest on the Coconino Plateau, featuring forest jeep roads, ro..

November 2025

The Snake Eater 100K, held in Tusayan, Arizona, is an epic ultramarathon that challenges runners with a rugged and scenic course. Starting on the legendary 302 trail, participants face a demanding route featuring steep jeep roads and breathtaking views of jagged peaks and expansive desert landscapes..

The Route 66 UltraRun is a 140-mile ultramarathon held annually in Seligman, Arizona, celebrating the historic Mother Road. The event offers a welcoming atmosphere with no qualification requirements, encouraging runners, crews, volunteers, and spectators to join the first mile together. Participants..

February 2026

The Black Canyon Ultras, held in Arizona's Sonoran Desert, feature challenging point-to-point 100K and 50K races along the scenic Black Canyon National Recreation Trail. Starting at Mayer High School in Spring Valley, the 100K course covers 62.2 miles with over 5,200 feet of elevation gain, finishin..

April 2026

The Whiskey Basin Trail Runs, held in Prescott, Arizona, offer a range of distances including 92K, 60K, 33K, a half-marathon, and 10K. The races take place along the scenic Prescott Circle Trail, which encircles the city, with all events finishing at Watson Lake Park, featuring views of the Granite..

The VUE (Vortex Ultra Experience) is a trail running event held in the stunning Red Rocks of Sedona, Arizona. Celebrating its 5th anniversary on April 18, 2026, the race offers five distance options: 50 miles, 34 miles, 21 miles, 12 miles, and 4 miles, catering to a wide range of runners. The course..