Races
Whiskey Basin 91K
Full Prescott Circle Trail loop. Watson Lake to Watson Lake. Granite Dells scrambles. Ponderosa pine. Whiskey Row waits downtown.
91K+4,106 ft-4,122 ft16 hours5,153 ft to 6,655 fttech 5/10Checkpoints per race bookPrescott Circle TrailWatson LakeWhiskey RowApril
Distance91K
Gain+4,106 ft
Loss-4,122 ft
Altitude5,153 ft to 6,655 ft
Technicality5/10
Air35°F to 75°F
- Start5,259 ft
- High6,655 ft
- Low5,153 ft
- Finish5,243 ft
Terrain
Field, 2026 · 11-year samplescraped
Starters114
Finish rate82%
Median14:51
Sub-2493
Geometryderived
Steepest drop715 ft-6.8% over 2.0 mi
Course records
Men7:41:32Nick Coury
Women8:39:06Nicole Bitter
The cruxPrescott Circle Trail granite scrambles through the Granite Dells (near mile 59)
Course DNA
The Course
Whiskey Basin 91K runs 91K through Prescott, Arizona. +4,106 ft gain and -4,122 ft loss. Surfaces skew 70% trail / 20% gravel / 10% granite scramble. Prescott Circle Trail granite scrambles through the Granite Dells. High point near 6,655 ft. Low near 5,153 ft. April temps run 35°F to 75°F. The course rewards patience early and punishes rushed descents after mile 46.
The Work
Train for 4,106 feet of climbing across 91K. Back-to-back long runs on trail. Practice power-hiking grades above 15 percent. 16 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 59.
Kit
April in Prescott, Arizona: plan for 35°F to 75°F. Mandatory shell if rain is in forecast. Headlamp with spare batteries if 16 hours pushes past dark. Poles help on sustained climbs above mile 23. Vest capacity for 2 liters minimum. Shoes matched to 70% trail: lugs for mud, rock plate if the course turns technical after mile 46.
Race Day
Hold effort through mile 23. The field often splits on the first big climb after mile 46. Prescott Circle Trail granite scrambles through the Granite Dells near mile 59 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 30 miles of fatigue management. Finish with reserve for the last descent.
Results
Whiskey Basin 91K finish lines.
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Sources (3)
- Field stats (2026): https://ultrasignup.com/results_event.aspx?did=126299
- Course record (M): https://ultrasignup.com/results_event.aspx?did=106466
- Course record (F): https://ultrasignup.com/results_event.aspx?did=59998