Trail Running calendar near Williamson 2026-2027

Celebrate Independence Day with a scenic 4 mile trail run through White Tank Regional Park. Experience mountain views and climb toward the top of the park to earn a finisher medal and T-shirt at this cup-less green event.

Six night trail races across Maricopa County Regional Parks from April to September, with distances from 5 km to 75 km. Series passes provide a 20% discount and a points system that counts the top three race scores for awards.

Join the 48th annual run and walk through the scenic trails of Flagstaff. Support the local Children's Health Center while participating in a 10K, 5K, or 2K event at Fort Tuthill or virtually.

Night trail races at White Tank Mountain Regional Park offering 6K to 52K on a 6.5 mile Sonoran loop with technical terrain, stocked aid stations, live tracking, camping availability, and cupless race protocol.

A long-standing Flagstaff event on August 8 featuring a half marathon, 5K and Kid's Dash on Observatory Mesa, commemorative medals and shirts, with proceeds supporting Big Brothers Big Sisters mentoring programs.

A 50K trail race in Prescott, Arizona that starts and finishes at Thumb Butte Trailhead. The 31.7-mile course gains about 4,500 feet and passes Thumb Butte, Quartz Mountain and Sierra Prieta Overlook with aid stations on course.

A USA Track & Field Mountain Ultra Trail sanctioned uphill race at Arizona Snowbowl, roughly 11 miles of ascent with limited entry for 150 runners on August 15, 2026. The course features high elevation, aid stations, and a summit finish.

A 4.5 miles hill course in Jerome that starts at the Historical Museum, follows town streets and a dirt road past the Gold King Mine, and finishes at a viewpoint overlooking Sedona. Limited parking and two on-course water stations.

A trail event on the Mogollon Rim near Pine, Arizona offering a 100 mile and a 42K course featuring high elevation, multiple rim climbs, technical singletrack and staffed aid stations.

Trail running in Flagstaff with distances from 6K to 50K through aspen and pine trails. Longer races use loop combinations, aid stations are within seven miles, and entrants receive a shirt and finisher medal.

Flagstaff to Grand Canyon Stagecoach Line Races feature 100 mile and 55K runs, a 100 mile mountain bike race, and relay options on the Arizona Trail north of the San Francisco Peaks in September 2026. A linked double pairs the event with th..

A three day mountain race weekend at Arizona Snowbowl near Flagstaff featuring a steep Agassiz Hill Climb, race distances up to 50 miles, and fixed time 6 hour and 12 hour loop options that climb toward 11,510 feet.

A backyard ultra near SP Crater in Flagstaff where competitors run a 4.167 mile loop each hour; laps repeat until only one runner completes a loop and is declared the winner.

A fully supported 50K trail ultra in Prescott, Arizona on September 26, 2026, run on rugged granite terrain with stocked aid stations, on course safety teams, finisher medals and awards for the top three men and women.

Experience an off road trail race through the Coconino National Forest at high altitude. Choose from a marathon, half marathon, or 10k while supporting local college cross country programs in the Arizona Nordic Village.

Saddles 100 in Prescott, AZ on October 3, 2026 features a loop course with multiple trail races, including 100 miles, 50 miles, 10.72K and a 6.66 mile fun run around Willow Lake.

Trail races at Government Prairie in Kaibab National Forest on October 10, 2026, offering 30K, 18K, 10K and a 1K kids dash. Organized by volunteers with proceeds benefiting Big Brothers Big Sisters of Flagstaff.

A 45-mile unofficial "fatass" trail race in Flagstaff, Arizona on October 10, 2026. No entry fee; runners must bring assigned food or drink contributions and expect limited aid stations.

Night trail races at Cave Creek Regional Park offering looped 5K, 11K, 22K and 33K options on desert single track with stocked aid stations, live tracking and a cupless race policy.

A half marathon on October 17, 2026 in Flagstaff that climbs to the summit of Mt. Elden and includes technical single-track, one aid station near mile 6, and enforced cutoffs with limited primitive parking at Sandy Seep Trailhead.