Races
Arizona Monster 300
Patagonia to Superior. Remote Arizona Trail, desert to pine. Mount Lemmon is the climb.
300.5 mi+10,384 ft-11,781 ft170 hours1,681 ft to 7,613 fttech 5/10Checkpoints per race bookpoint to point84% single-trackMarch
Distance300.5 mi
Gain+10,384 ft
Loss-11,781 ft
Altitude1,681 ft to 7,613 ft
Technicality5/10
Air20°F to 95°F
- Start4,043 ft
- High7,613 ft
- Low1,681 ft
- Finish2,646 ft
- CP1 at mile 30, cutoff 14 hours
- CP2 at mile 60, cutoff 28 hours
- CP3 at mile 90, cutoff 42 hours
- CP4 at mile 120, cutoff 54 hours
- CP5 at mile 150, cutoff 66 hours
- CP6 at mile 180, cutoff 78 hours
- CP7 at mile 210, cutoff 90 hours
- CP8 at mile 240, cutoff 102 hours
- Finish at mile 300, cutoff 108 hours
Terrain
Field, 2026 · 2-year samplescraped
Starters131
Finish rate55%
Median142:23
Fastest82:49
Geometryderived
Steepest drop873 ft-7.9% over 2.1 mi
Night miles147 misunset near 17:00 local
Weather at the cruxderived
At hour 10 of race, feels like 13 C (65 F).Sample of 7 race days, medium confidence.At hour 10 of race, apparent temperature P90 is 13 C / 56 F.
Course records
Men82:49:45Michael McKnight
Women99:55:02Selene Mallone
The cruxMount Lemmon (near mile 195)
Course DNA
The Course
Arizona Monster 300 runs 300.5 mi through Patagonia to Superior, Arizona. +10,384 ft gain and -11,781 ft loss. Surfaces skew 84% trail / 2% jeep / 14% paved. Mount Lemmon. High point near 7,613 ft. Low near 1,681 ft. March temps run 20°F to 95°F. The course rewards patience early and punishes rushed descents after mile 150.
The Work
Train for 10,384 feet of climbing across 300.5 mi. Back-to-back long runs on trail. Practice power-hiking grades above 15 percent. 170 hours total means limited margin: rehearse fueling every 45 to 60 minutes and downhill eccentric work weekly. Technicality 5/10. Build a block that simulates the crux near mile 195.
Kit
March in Patagonia to Superior, Arizona: plan for 20°F to 95°F. Mandatory shell if rain is in forecast. Headlamp with spare batteries if 170 hours pushes past dark. Poles help on sustained climbs above mile 75. Vest capacity for 2 liters minimum. Shoes matched to 84% trail: lugs for mud, rock plate if the course turns technical after mile 150.
Race Day
Hold effort through mile 75. The field often splits on the first big climb after mile 150. Mount Lemmon near mile 195 is where time is won or lost. Walk the steep pinches. Run the flats and gentle downhills. Crew at major aids: socks, calories, ice if hot. Transitions under 5 minutes when possible. Final third is 99 miles of fatigue management. Finish with reserve for the last descent.
Results
Arizona Monster 300 finish lines.
Winner: Michael McKnight, 82:49:45.
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Sources (1)
- Field stats (2026): https://ultrasignup.com/results_event.aspx?did=125809