The McDowell Mountain Frenzy returns to Fountain Hills, Arizona on December 5th, offering a range of distances through the picturesque desert landscape within the McDowell Mountains. Participants can expect an early morning start at around sunrise when temperatures are cooler and visibility is clear. The race takes place in the heart of the McDowell Mountain Regional Park and McDowell Sonoran Preserve, where runners will encounter rolling single-track trails with short steep climbs and drops along the Coach Whip and Dixie Mine routes. This challenging terrain offers a mix of technical trail running alongside scenic views that are typical for this time of year. The event is part of the Aravaipa Running Desert Runner Trail Fall Series, which has been expanding its footprint across various distances over the years. Each race contributes to one of four point divisions: Quail (short), Roadrunner (middle), Owl (Trail), and Hawk (Ultra). The McDowell Mountain Frenzy features multiple races that score points in different series categories depending on distance run. This year, runners have an opportunity not only to compete but also contribute positively by participating in a cupless event aimed at reducing the race's environmental impact. The course offers a competitive yet scenic backdrop with rolling single-track trails and newly constructed routes within McDowell Mountain Regional Park and Preserve. Runners will navigate through desert terrain that includes short steep climbs, drops, and wide open spaces for sprinting or pacing oneself during longer races like the 50 Miler (80.5K) and 25 K race. On race day, temperatures range from mild to cool in the morning hours before gradually warming up as midday approaches. The firm trail conditions with slightly soft surfaces provide runners a stable footing while ensuring that they encounter minimal technical challenges compared to wetter or more rugged terrain. UV levels are low during this time of year, which means less concern for sunburn and dehydration. The McDowell Mountain Frenzy features several race distances catering to various skill sets and preferences: 50 Miler (80.5K), 50 K (50K), 25 K (25K), 10 Miler (16.1K) and a shorter distance of the 5 Miler (8K). Each has its unique challenges, from technical trail running to long-distance endurance testing.
50 Miler 80.5K • Start: 07:00:00 • Fee: $170.00
50K 50K • Start: 07:30:00 • Fee: $130.00
25K 25K • Start: 08:00:00 • Fee: $90.00
10 Miler 16.1K • Start: 08:15:00 • Fee: $70.00
5 Miler 8K • Start: 08:30:00 • Fee: $45.00
For those planning their participation, online registration closes on Monday before race day at https://ultrasignup.com/register.aspx?did=134105. Late registrants can opt for packet pickup either the Friday or Saturday prior to the event weekend. Race fees vary based on distance selected and range from $45 up to $170. Race-day bib pick-up is available at 6:00 AM until start time, located near the McDowell Mountain Park entrance. All participants must show proof of registration upon arrival for packet collection; additional ID may be required if in doubt about identity verification needs during check-in procedures. Race day starts promptly from 16300 McDowell Mountain Park Drive with no exceptions regarding age requirements other than those set by specific race distances. The McDowell Mountain Frenzy, taking place on December 5th in Fountain Hills, Arizona, offers a unique blend of challenging trails and scenic views within the McDowell Mountains. This event is particularly notable for its efforts to minimize environmental impact through cupless events and reusable cups provided at registration locations.
Races Offered
50 Miler
Dec 05, 2026
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Distance —
80.5K
terrain
Type —
Running
timer
07:00
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$170.00
50K
Dec 05, 2026
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Distance —
50K
terrain
Type —
Running
timer
07:30
sell
$130.00
25K
Dec 05, 2026
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Distance —
25K
terrain
Type —
Running
timer
08:00
sell
$90.00
10 Miler
Dec 05, 2026
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Distance —
16.1K
terrain
Type —
Running
timer
08:15
sell
$70.00
5 Miler
Dec 05, 2026
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Distance —
8K
terrain
Type —
Running
timer
08:30
sell
$45.00
Weather History
These values represent the 3-year monthly averages for December in Fountain Hills.
