Eiger Ultra Trail takes place on Sat, Jul 17, 2027 in Grindelwald, Switzerland. The main route is 101 km.
- Date
- Sat, Jul 17, 2027
- Start
- Grindelwald 🇨🇭
- Distance
- 101 km
- Climbing
- 6,700 m
- Level
- Open to all
Your 41-week plan to Eiger Ultra Trail
The Base phase starts this week. Built around your fitness and adjusted every day as your form changes; attach the course and it prepares for the climbs too.
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The Eiger Ultra Trail is a legendary high-alpine trail running event in Grindelwald, Switzerland, featuring demanding mountain courses that circle the iconic Eiger massif.
What this race demands
The Eiger Ultra Trail demands exceptional climbing capability and sustained muscular durability across 101 kilometers of high-alpine terrain with 6700 meters of elevation gain.
Climbing volume
Navigating 6700 meters of elevation gain over a 101-kilometer distance requires continuous uphill locomotion and the specific muscular strength needed to sustain climbing efficiency over many hours.
Descent durability
The extensive descending required in a high-alpine environment places severe eccentric loading on the quadriceps, demanding robust structural durability to prevent late-race breakdown.
High-alpine endurance
Operating at high altitude for an extended duration demands profound aerobic capacity and effective pacing strategies to manage energy expenditure across a prolonged mountain effort.
Given the extended duration of a 101-kilometer alpine run, athletes should target 60 to 90 grams of carbohydrates per hour to maintain glycogen stores and sustain output.
Estimated finish times
Estimates by level, not promises. Your own number depends on your fitness on the day.
Your road to race day
Race day at Eiger Ultra Trail is 41 weeks away. This is how a coach divides that time. The first phase starts now.
01Base29 weeks · Oct 4, 2026 – Apr 24, 2027
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · Apr 25, 2027 – Jun 5, 2027
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
03Peak3 weeks · Jun 6, 2027 – Jun 26, 2027
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
04Taper2 weeks · Jun 27, 2027 – Jul 10, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · Jul 11, 2027 – Jul 17, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is Eiger Ultra Trail?
Eiger Ultra Trail takes place on Sat, Jul 17, 2027 in Grindelwald, Switzerland.
How long is Eiger Ultra Trail?
The main route is 101 km.
What does Eiger Ultra Trail demand?
The Eiger Ultra Trail demands exceptional climbing capability and sustained muscular durability across 101 kilometers of high-alpine terrain with 6700 meters of elevation gain.
How much climbing does Eiger Ultra Trail have?
Eiger Ultra Trail has 6,700 m of climbing.
Who is Eiger Ultra Trail for?
Eiger Ultra Trail is open to all participants.
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