Napf-Marathon takes place on Sun, Oct 11, 2026 in Trubschachen, Switzerland. The main route is 42.2 km.
- Date
- Sun, Oct 11, 2026
- Start
- Trubschachen 🇨🇭
- Distance
- 42.2 km
- Climbing
- 1,542 m
- Level
- Open to all
The Napf-Marathon is an undulating and demanding mountain marathon in the pre-Alpine Emmental region of Switzerland featuring technical trails, hills, and streams.
Official event pageWhat this race demands
The Napf-Marathon requires sustaining forward momentum across a full marathon distance combined with over 1500 meters of climbing on technical pre-Alpine trails.
Continuous Elevation Management
Covering 1542 meters of gain over 42.2 kilometers requires robust uphill hiking strength and controlled descent mechanics to preserve quadricep function.
Technical Trail Durability
Navigating hills, streams, and technical terrain demands ankle stability, proprioception, and muscular resilience to prevent late-race degradation.
Aerobic Sticking Power
An undulating mountain marathon profile imposes sustained cardiovascular load that requires efficient pacing to manage energy expenditure.
A marathon duration exceeding three to four hours requires a consistent intake of 60 to 90 grams of carbohydrates per hour to maintain glycogen availability.
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 Napf-Marathon is 7 weeks away. This is how a coach divides that time. The first phase starts now.
01Build1 week · Aug 24, 2026 – Aug 30, 2026
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
02Peak3 weeks · Aug 31, 2026 – Sep 20, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
03Taper2 weeks · Sep 21, 2026 – Oct 4, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
04Race week1 week · Oct 5, 2026 – Oct 11, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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