Races
Eiger Ultra Trail
Two hundred fifty kilometers around the Bernese Oberland. Multi-day alpine racing beneath the Eiger, Monch, and Jungfrau.
250 km+37,209 ft-37,219 ft90 hours2,067 ft to 8,688 fttech 5/10Checkpoints per race bookmulti-dayBernese OberlandWSER qualifierJulyRunning Stones · 6 stones
Distance250 km
Gain+37,209 ft
Loss-37,219 ft
Altitude2,067 ft to 8,688 ft
Technicality5/10
Air28°F to 75°F
- Start3,383 ft
- High8,688 ft
- Low2,067 ft
- Finish3,373 ft
Geometryderived
Steepest drop2,792 ft-24.1% over 2.2 mi
Night miles46 misunset near 20:00 local
Weather at the cruxderived
At hour 7 of race, feels like 28 C (78 F). 42 percent chance of rain.Sample of 7 race days, medium confidence.At hour 7 of race, apparent temperature P90 is 28 C / 83 F.
The cruxSecond night above the Lauterbrunnen Valley with sleep debt and weather exposure (near mile 101)
Course DNA
The Course
Eiger Ultra Trail runs 250 km through Grindelwald, Switzerland. +37,209 ft gain and -37,219 ft loss. Surfaces skew 70% alpine trail / 25% scree / 5% road. Second night above the Lauterbrunnen Valley with sleep debt and weather exposure. High point near 8,688 ft. Low near 2,067 ft. July temps run 28°F to 75°F. The course rewards patience early and punishes rushed descents after mile 78.
The Work
Train for 37,209 feet of climbing across 250 km. Back-to-back long runs on trail. Practice power-hiking grades above 15 percent. 90 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 101.
Kit
July in Grindelwald, Switzerland: plan for 28°F to 75°F. Mandatory shell if rain is in forecast. Headlamp with spare batteries if 90 hours pushes past dark. Poles help on sustained climbs above mile 39. Vest capacity for 2 liters minimum. Shoes matched to 70% alpine trail: lugs for mud, rock plate if the course turns technical after mile 78.
Race Day
Hold effort through mile 39. The field often splits on the first big climb after mile 78. Second night above the Lauterbrunnen Valley with sleep debt and weather exposure near mile 101 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 51 miles of fatigue management. Finish with reserve for the last descent.
Results
Eiger Ultra Trail finish lines.
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Sources (1)
- Qualifier: utmb_stones: https://utmb.world/utmb-world-series