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Arizona 100-mile race guide

100-Mile Races in Arizona

Compare verified Arizona races that offer a 100-mile option, from controlled loops to desert and mountain trails. The table connects each listed edition with its course model, terrain, cutoff, detailed event record, and official organizer sources.

Arizona races
5
Terrain types
3
Active or upcoming
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Compare Arizona 100-Mile Races

Use this as a first comparison, then open each race page for aid, crew, elevation, weather, and logistics notes before following the official rules link.

Verified Arizona 100-mile races with listed date, course model, terrain, and cutoff
RaceListed dateStatusCourseTerrainCutoff
Javelina Jundred — 100 MileThe 2026 race started October 31 after significant rain on Friday, with more heavy rain forecast overnight into Sunday; Aravaipa warned that flowing washes could delay aid-station pickups and leave gaps in live tracking. Winners below come from Aravaipa Live timing, checked while slower runners were still on course; UltraSignup had not posted official results yet.Oct 31 – Nov 1, 2026In progressLoopDesert30 hours per wave. On Sunday, November 1, Wave 1 must start loop 5 by 6:00 AM and finish by noon; Wave 2 must start loop 5 by 6:30 AM and finish by 12:30 PM. Cutoffs use the assigned wave’s gun time.
Coldwater Hundred — 100 MileThe 2027 event page was current at review but still linked the 2026 runner guide.Jan 16–17, 2027UpcomingLoopDesert32 hours, finishing by 3:00 PM Sunday
Bradshaw Brute 100The 2027 date, cutoff and elevation figures are now labeled for 2027. The surface-percentage table still carries a 2026 label.May 2–3, 2027UpcomingPoint-to-pointMountain38 hours, finishing by 8:00 PM Monday
Flagstaff to Grand Canyon Stagecoach Line 100Sep 19–20, 2026Past editionPoint-to-pointTrail31 hours for solo runners, with mandatory intermediate cutoffs in the current manual
Mogollon Monster 100The 2026 edition has been run. The linked runner guide now carries a September 3, 2026 update. The main event page has moved on to the 2027 race date.Sep 12–13, 2026Past editionPoint-to-pointMountain38 hours

Season and Environmental Demands

Arizona's 100-mile options are spread across different settings and times of year. Low-desert exposure, cool nights, higher-elevation terrain, wind, and storms can produce very different race plans even within one state.

Treat the event record as comparison context rather than a forecast. Use the organizer's latest runner guide and a current local forecast for final clothing, water, cooling, and travel decisions.

Loop, Crew, and Travel Logistics

A looped race may simplify access to food, shoes, and crew, while a remote trail course can make aid gaps, vehicle access, pacers, drop bags, and withdrawal transport more important.

  • Check whether crew and pacers are allowed, restricted, or unnecessary
  • Confirm the actual start venue rather than relying on the nearest city
  • Compare intermediate cutoffs and access—not only the finish limit

Active and Upcoming Arizona 100-Mile Races

Listed Arizona editions that have not yet ended, ordered by race date.

Fixed-DistanceIn progress

Javelina Jundred — 100 Mile

McDowell Mountain Regional Park, Arizona, USA · Desert

A social desert-trail 100 using five rolling loops in McDowell Mountain Regional Park, with an estimated 6,296 ft of gain and a 30-hour cutoff.

Edition note: The 2026 race started October 31 after significant rain on Friday, with more heavy rain forecast overnight into Sunday; Aravaipa warned that flowing washes could delay aid-station pickups and leave gaps in live tracking. Winners below come from Aravaipa Live timing, checked while slower runners were still on course; UltraSignup had not posted official results yet.

100 mi
View verified race details →
Fixed-DistanceUpcoming

Coldwater Hundred — 100 Mile

Estrella Mountain Regional Park, Goodyear, Arizona, USA · Desert

A 101.3-mile desert loop race at Estrella Mountain Regional Park, combining two shorter red loops and three longer blue loops with a 32-hour cutoff.

Edition note: The 2027 event page was current at review but still linked the 2026 runner guide.

101.3 mi
View verified race details →
Fixed-DistanceUpcoming

Bradshaw Brute 100

Black Canyon City to Prescott, Arizona, USA · Mountain

A distinct 99.9-mile point-to-point race within Cocodona race week, climbing from Black Canyon City through Crown King to Prescott with a 38-hour cutoff.

Edition note: The 2027 date, cutoff and elevation figures are now labeled for 2027. The surface-percentage table still carries a 2026 label.

99.9 mi
View verified race details →

Recent Arizona 100-Mile Editions

Source-checked listed editions retained after their date for course and organizer research.

Calendar FAQs

How many Arizona 100-mile races are listed here?

The count shown at the top is generated from the source-checked event registry. It can change as editions are verified, archived, added, or removed.

Are all Arizona 100-milers desert races?

No. The listed races include short desert loops, point-to-point mountain crossings, and forest or high-country trails. Compare terrain, elevation, season, aid access, and course model on the individual event pages.

Which Arizona 100-mile race is easiest?

The directory does not rank races as easiest. A flatter loop may simplify navigation and supplies, but heat, repetitive loading, cutoffs, entry standards, and personal experience can still make it unsuitable for a particular runner.

Current calendar: Arizona