Aletsch Half-Marathon takes place on Sun, Jun 27, 2027 in Bettmeralp, Switzerland. The main route is 21.1 km.
- Date
- Sun, Jun 27, 2027
- Start
- Bettmeralp 🇨🇭
- Distance
- 21.1 km
- Climbing
- 1,148 m
- Level
- Open to all
Your 38-week plan to Aletsch Half-Marathon
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 Aletsch Half-Marathon is a challenging 21.1 km mountain run through the UNESCO World Heritage Site with views of the Great Aletsch Glacier.
What this race demands
The Aletsch Half-Marathon demands sustained climbing strength and efficient descending over a 21.1 km mountain profile with 1148 meters of elevation gain.
Climbing Capacity
Accumulating 1148 meters of vertical gain over a half-marathon distance requires sustained aerobic power and muscular endurance on steep mountain ascents.
Technical Descending
Navigating a high-altitude trail run through a mountain terrain demands high levels of eccentric leg strength, stability, and footing control.
Aim for 45 to 60 grams of carbohydrates per hour to maintain energy output during a mountain effort lasting around 2 to 4 hours.
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 Aletsch Half-Marathon is 38 weeks away. This is how a coach divides that time. The first phase starts now.
01Base26 weeks · Oct 5, 2026 – Apr 4, 2027
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · Apr 5, 2027 – May 16, 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 · May 17, 2027 – Jun 6, 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 7, 2027 – Jun 20, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · Jun 21, 2027 – Jun 27, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is Aletsch Half-Marathon?
Aletsch Half-Marathon takes place on Sun, Jun 27, 2027 in Bettmeralp, Switzerland.
How long is Aletsch Half-Marathon?
The main route is 21.1 km.
What does Aletsch Half-Marathon demand?
The Aletsch Half-Marathon demands sustained climbing strength and efficient descending over a 21.1 km mountain profile with 1148 meters of elevation gain.
How much climbing does Aletsch Half-Marathon have?
Aletsch Half-Marathon has 1,148 m of climbing.
Who is Aletsch Half-Marathon for?
Aletsch Half-Marathon is open to all participants.
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