PhoMo 50K: A Challenging Journey Through Phoenix Mountain Preserves Join the third annual PhoMo 50K, set to challenge runners with its rugged terrain and scenic beauty within the Phoenix Mountain Preserve. The race starts early on Saturday, December 12, 2026, at 7:00 a.m., from the Shadow Rock Church parking lot located at 12861 N 8th Ave in Phoenix. Runners will embark on an unmarked course but can rely on GPX coordinates available for their smartwatches or phones. The race route winds through rocky and technical trails, with approximately 5,500 feet of elevation gain scattered throughout the run. Participants should expect minimal shade along the way, making it essential to prepare for warm weather conditions. The event is limited to just 50 runners who will have access to crew support at designated trailheads like Piestewa Peak TH and Dreamy Draw Trailhead. Pacers are permitted from Piestewa Peak TH onward, providing a strategic advantage as the course progresses through challenging terrain. Aid stations will be set up in key locations such as the top parking lot of Piestewa Peak TH and at the ramada area near Dreamy Draw trailhead for both out-and-back sections. These areas also offer water fountains and restroom facilities, while runners should carry their own hydration and calories throughout most of the route due to sparse aid stations. All participants will receive a commemorative PhoMo hat upon registration before December 23, 2026; late registrations won't be eligible for this swag. The race is held rain or shine with no refunds available in case of cancellation. As part of your preparation, watch out for training runs announced on the Strava group page and mark your calendars for a packet pick-up and shake-out run scheduled for December 10 at a location to be determined. The top male and female finishers will earn an exclusive prize: a free entry into next year’s Old Pueblo 50 miler, adding extra excitement to this already thrilling race. For more detailed information about the course layout, visit [Caltopo](https://caltopo.com/m/DPN2BLN) and [Garmin Connect](https://connect.garmin.com/app/course/493910816). This event promises to be an unforgettable adventure for trail runners seeking a blend of challenge and scenic beauty.
Experience the Phoenix Mountain Preserves like never before with PhoMo 50K, where every step takes you deeper into nature's raw wilderness.
Races Offered
50K
Dec 12, 2026
straighten
Distance —
50K
terrain
Type —
Running
timer
07:00
sell
$95.00
Weather History
These values represent the 3-year monthly averages for December in Phoenix.
thermostatTemperature
8.0° / 21.3°
wb_sunnyFeels like
5.0° / 18.4°
light_mode
Avg sunshine hours
8h 34m
water_drop
Avg rainfall
0.6 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
5.2 km/h (Light breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Low (2.0)
humidity_mid
Humidity
43.5%
wb_twilight
Sunrise
07:24
nightlight
Sunset
17:23
About Phoenix
Learn more about the host city, Phoenix.
Phoenix is the capital of the state of Arizona, the most populous city in the American Southwest. Warm and sunny winter weather have ensured a thriving tourism industry, and the city has become the region's primary political, cultural, economic, and transportation center. Phoenix is extremely hot and dry in the summertime, so always have sunscreen with you! It had about 1,625,000 residents in 2021, and is the fifth largest city in the United States.