Arizona Monster 300

Event Overview

Course & Terrain

Point-to-point desert and mountain route from Patagonia to Superior in southern Arizona.

Key course features to know before comparing this race:

• Start in Patagonia in southern Arizona and finish 300.5 miles later in Superior
• The 19.8-mile, 6,175 ft climb from Charlou Gap to Mount Lemmon at mile 171.2
• Saguaro desert and high-elevation mountain trail on National Forest land
• Gila River to Picket Post: 21.7 miles and 3,704 ft of climbing late in the race

By the organizer’s figures the 2027 course climbs 32,386 ft and drops 33,840 ft, averages 3,729 ft of elevation and is about 75% runnable. It is mostly remote Sonoran Desert trail on National Forest land, which Slowtwitch describes as loosely following the Arizona Trail. The defining climb is Charlou Gap to Mount Lemmon: 19.8 miles with 6,175 ft of gain, budgeted at 12 hours in the manual’s pacing plan. Gila River to Picket Post (21.7 miles, 3,704 ft of gain) is the slowest planned segment at 15 hours, while Valencia to Rillito through the Tucson area is almost flat, with 170 ft of gain over 21.9 miles. The manual warns of exposed sections, cliffs, rockfall, snakes, scorpions and spiders, and of rarely used trails. The course is marked with reflective ribbons and arrow signs, but markers can disappear, so a GPX track on a phone, watch or GPS unit is mandatory and checked at check-in.

Organizer guidance in the runner manual: temperatures can swing from 10°F at night in the mountains to over 100°F in the desert by day, and have dropped as low as 7°F (−14°C) on course. Weather fronts can build quickly, so warm layers must be carried at all times, and the mandatory kit includes a hooded waterproof jacket, gloves, full-length pants and an insulating layer. Destination Trail sums up late March as warm days and cold nights. Mount Lemmon, reached at mile 171.2, is the cold spot; the manual links a forecast for 7,956 ft there. Winner Michael McKnight called 2026 the hottest race he had run (KSL). The organizer can reroute mid-race or cancel for monsoon, heavy snowpack, extreme weather or fire danger, without refunds.

Entry & Logistics

Why This Race Matters

Destination Trail, the company founded by Candice Burt, who created the first point-to-point and single-loop 200-mile races in the United States, added the Arizona Monster in 2025 as the longest race in a lineup that includes the Tahoe 200, Bigfoot 200 and Moab 240. The first edition started April 4, 2025, with 284 runners in staggered waves. In 2026, two-time Bigfoot 200 winner Michael McKnight won in 82:49:45, nearly four hours under Peter Mortimer’s 2025 time, and Canada’s Selene Mallone became the first woman under 100 hours, placing fourth overall in 99:55:02. The 2027 race, the third edition, runs the other way, south to north from Patagonia to Superior, over a shorter 300.5 miles, and cuts the time limit from 170 to 150 hours.

Historical benchmark notes in the directory record (verify current records with the linked official sources):

• Men: Michael McKnight, 82:49:45, 2026 (304-mile course run from Superior to Patagonia)
• Women: Selene Mallone, 99:55:02, 2026 (same course; first woman under 100 hours)
• 2025 winners on the 308.6-mile inaugural course: Peter Mortimer, 86:33:18, and Anne Tisdell, 105:14:44

Preparing for a Race Like Arizona Monster 300

The 200-mile race guide covers the format as a whole. These guides go deeper:

• 200-mile race strategy: Pacing, sleep loss, aid stations, navigation, crew and feet, with a worked Moab 240 plan.
• Sleep strategy for multiday races: An individual sleep plan with safe locations and clear stop criteria.
• Crew and aid-station strategy: Crew tables, aid stops, drop bags and runner preferences.
• Foot-care kit for multiday running: Tape, lube, socks, blister pads and simple hot-spot rules.

Best Fit

• Experienced 200-mile finishers ready to step up to 300 miles
• Runners who can navigate from a GPX track and carry 20-plus miles of water
• Grand Slam runners opening Destination Trail’s season in March

Planning Notes

• Prepare for sleep decisions, weather swings, and aid-station discipline. The distance is only one part of a multi-day fixed-distance race.
• Heat, sun, and dry air require event-specific preparation. Test sun protection and cooling, drink in response to thirst, and remember that sodium cannot make overdrinking safe.
• The directory does not mark this as having simpler logistics. Confirm qualification, terrain, support, registration, medical, and withdrawal requirements before planning around it.
• Remote desert and mountain terrain with very few water sources: several gaps top 20 miles, including Casa Blanca to Apache Springs (20.4), Valencia to Rillito (21.9) and Gila River to Picket Post (21.7), and the organizer recommends being able to carry 3 liters
• A tighter clock: 150 hours in 2027, down from 170 in 2025 and 2026. On the longer 2026 course, 47 of the 72 finishers came in under 150 hours
• Sleep tents are capped at six hours, and needing an IV, EMS or search and rescue means automatic disqualification
• Official sources disagree on climbing: the organizer’s website and 2027 runner manual give 32,386 ft, while the UltraSignup listing still shows 41,162 ft from the 2025 and 2026 courses
• Remote desert and mountain conditions

Event FAQs

Related Preparation

• Browse Arizona Ultramarathons
• Open the 200+ Mile format guide
• Compare all race formats
• Use the timed-race pace calculator
• Plan checkpoint arrivals and cutoff buffers
• Build a crew and drop-bag plan
• Build a race-specific gear checklist