Races
Ultra Trail Amanecer Comechingón
Argentina, October. 120 km on 75% trail. +9,590 ft of climbing. 32 hours cutoff.
- Start5,397 ft
- High6,470 ft
- Low4,596 ft
- Finish4,596 ft
Geometryderived
Weather at the cruxderived
At hour 9 of race, feels like 30 C (87 F).Sample of 7 race days, medium confidence.At hour 9 of race, apparent temperature P90 is 30 C / 85 F.
The cruxPatagonia wind, river crossings, and long dirt road connectors (near mile 48)
Course DNA
The Course
Ultra Trail Amanecer Comechingón runs 120 km through Argentina. +9,590 ft gain and -10,390 ft loss. Surfaces skew 75% trail / 20% dirt road / 5% paved. Patagonia wind, river crossings, and long dirt road connectors. High point near 6,470 ft. Low near 4,596 ft. October temps run 40°F to 80°F. The course rewards patience early and punishes rushed descents after mile 37.
The Work
Train for 9,590 feet of climbing across 120 km. Back-to-back long runs on trail. Practice power-hiking grades above 15 percent. 32 hours total means limited margin: rehearse fueling every 45 to 60 minutes and downhill eccentric work weekly. Technicality 6/10. Build a block that simulates the crux near mile 48.
Kit
October in Argentina: plan for 40°F to 80°F. Mandatory shell if rain is in forecast. Headlamp with spare batteries if 32 hours pushes past dark. Poles help on sustained climbs above mile 19. Vest capacity for 2 liters minimum. Shoes matched to 75% trail: lugs for mud, rock plate if the course turns technical after mile 37.
Race Day
Hold effort through mile 19. The field often splits on the first big climb after mile 37. Patagonia wind, river crossings, and long dirt road connectors near mile 48 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 25 miles of fatigue management. Finish with reserve for the last descent.
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