Trail Running Calendar Arizona 2025-2026

The Bare Buns Desert Run is a unique 5K trail race held at Shangri La Ranch in New River, Arizona. Known as the only nude run in Arizona, participants are encouraged to run with minimal clothing—just tennis shoes—though nudity is optional. The course winds through the ranch property, including hikin..

Jackass Night Trail is a unique 31K night race held at McDowell Mountain Regional Park in Fort McDowell, Arizona, as part of the Javelina Jundred event. This single-loop race follows the Javelina Jundred course clockwise, offering runners a festive nighttime experience with themed aid stations and t..

The Grand Canyon Trail Half Marathon is a scenic and challenging trail running event held in Tusayan, Arizona, near the Grand Canyon South Rim. The approximately 13.1-mile course loops through the rugged terrain of Kaibab National Forest on the Coconino Plateau, featuring forest jeep roads, rocky an..

Javelina Jundred is a unique and festive ultramarathon held annually at McDowell Mountain Regional Park near Fountain Hills, Arizona. The event features three race distances: 100 miles, 100 kilometers, and a 31-kilometer night trail run called Jackass Night Trail. The 100-mile race consists of five..

The Mingus Madness 50k is a challenging ultramarathon held in Prescott Valley, Arizona, featuring rugged and remote trails around the Woodchute side of Mingus Mountain. Covering approximately 32 miles with 6,000 feet of elevation gain, the course demands significant hiking and endurance. The event i..

The Punisher Night Trail is a night trail running event held at Usery Mountain Regional Park in Mesa, Arizona. It offers four distances: 30K, 20K, 10K, and 5K, all run on a scenic 9-kilometer loop featuring trails such as Noso, Blevins, Moon Rock, Levee, Spillway, Cat Peaks, and Cat Peaks Pass. The..

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..

The Snake Eater 100K is an ultra running event held in Tusayan, Arizona, near the Grand Canyon National Park. Participants can choose between 100K and 50K distances. The race starts downtown Tusayan at the IMAX theater and follows a rugged course that includes fire roads, forest trails, and approxim..

The PhoMo 50K is a challenging ultramarathon held in the scenic Phoenix Mountain Preserves, Arizona, starting and finishing at the Piestewa Peak Trailhead. Covering 31.2 miles (50 km) with over 6,000 feet of elevation gain, the course features rocky, technical terrain with minimal shade, demanding s..

Pass Mountain Trail Runs, held at Usery Mountain Regional Park in Mesa, Arizona, is a premier event in the Aravaipa Running Desert Runner Trail Series. The race offers multiple distances: 50 miles, 50K, 25K, 10K, and 5K, catering to a wide range of trail runners. The courses feature scenic and chall..

The Monument Valley Veterans Marathon will take place in Oljato-Monument Valley on Saturday 15 November 2025. You can run between 4 and 26 miles.

The Fat Ox Endurance Runs, held November 21-23, 2025, take place at Estrella Mountain Regional Park in Goodyear, Arizona. This ultra-running event features multiple race options including 48-hour, 24-hour, 12-hour, 6-hour timed runs, and fixed distances of 100 miles, 100K, 50 miles, and 50K. The cou..

The Trail Blazer 10k will take place in Peoria on Sunday 23 November 2025. You can run between 5 and 10 kilometers.

The Thanksgiving XC Classic is an annual running event held at Reid Park in Tucson, Arizona, featuring a European-style cross-country course with hay bales on grass, dirt, and some asphalt. Participants can choose between a 5K race, which consists of two loops, and a 1.5-mile fun run/walk with one l..

The McDowell Mountain Frenzy is a trail running event held at McDowell Mountain Regional Park in Fountain Hills, Arizona. It offers multiple race distances including 50 miles, 50K, 25K, 10 miles, and 5 miles, catering to both beginners and experienced runners. The courses feature rolling single-trac..

The Mayhem Night Trail is a thrilling night trail running event held at McDowell Mountain Regional Park in Fort McDowell, Arizona. Offering 25K, 10-mile, and 5-mile distances, the race challenges participants to navigate desert single-track trails under headlamp and moonlight. The course features wi..

The Southern Arizona Triple 50 is a unique ultra running challenge comprising three 50-mile races held in southern Arizona: the Colossal Vail 50 in Vail, the AZT Oracle Rumble 50 in Oracle, and the Old Pueblo 50 in Sonoita. All races take place along sections of the Arizona National Scenic Trail, of..

The Colossal Vail 50/50 is a trail running event held near Vail, Arizona, starting and finishing at Colossal Cave Mountain Park. It offers multiple distances including a 50-mile ultra, 55K, and half-marathon options with both day and night courses. The race features fast, rolling terrain on expertly..

The Vail Jingle Trail is an annual holiday-themed running event held in Tucson, Arizona. Celebrating its 20th edition in 2025, the race features a 5K run and a 1K "Santa's Little Helper" event, making it suitable for various ages and abilities. The course is decorated festively to enhance the holida..

The Pup-A-Go 5k Hike/Run is an annual event held at Papago Park in Phoenix, Arizona, featuring a 5K course that loops counterclockwise around the park. Participants can run, jog, or hike with their dogs or solo, with an emphasis on community and respect for all attendees. Dogs must be leashed and va..