Aletsch Halbmarathon
Bettmeralp, Switzerland · Sunday 6 June 2027
The Aletsch Halbmarathon is a true alpine challenge, set against the backdrop of Switzerland’s UNESCO-listed Aletsch Glacier. The route takes runners from Bettmeralp through high-altitude trails, with unparalleled views of the Alps at every turn. The climbs are relentless, but the reward - standing atop the ridge with the glacier stretching out below - is one of the most breathtaking sights a runner could hope for.
Difficulty Calculator
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:m
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Adjusted Time
2:22:04
Time difference: +37.1 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain1080m
Elevation High2640m
Elevation Low1932m
Weather Forecast
High13°C
Low6°C
Chance of Rain5%
How hard is Aletsch Halbmarathon?
Very Difficultharder than 93% of half marathons
Flattest / easiestHardest
On our difficulty model, Aletsch Halbmarathon plays about 31 minutes slower than an average road half marathon for a 1:30 runner. It ranks #30 hardest of 450 half marathons we analyse, and #3 of 7 in Switzerland. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Aletsch Halbmarathon?
Estimated finish times on this course versus the same effort on an average road half marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Aletsch Halbmarathon | Difference |
|---|---|---|
| 1:30:00 | 1:58:48 | +28:48 |
| 1:45:00 | 2:22:04 | +37:04 |
| 2:00:00 | 2:46:00 | +46:00 |
| 2:15:00 | 3:10:34 | +55:34 |
| 2:30:00 | 3:35:45 | +1:05:45 |
| 2:45:00 | 4:01:30 | +1:16:30 |
| 3:00:00 | 4:27:48 | +1:27:48 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Aletsch Halbmarathon 2027 Course Analysis
Aletsch Halbmarathon is a half marathon held in Bettmeralp, Switzerland. It is scheduled for Sunday 6 June 2027. The course is run on road surface with 1080m of total climbing, with its high point near 2640m above sea level. For registration and full race details, visit the official Aletsch Halbmarathon website.
Elevation Profile
This is a very challenging course with 1080m of total climbing - well above the average road marathon - topping out around 2640m above sea level. Hill training is essential, and you should expect a slower finish time than on a flat course.
Expected Race Day Weather
Based on historical weather data for June, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 6°C to 13°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (5%), so dry conditions are likely.
Surface Type: Road
Aletsch Halbmarathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Aletsch Halbmarathon against other half marathons to find the right race for your goals.
Half marathons of similar difficulty
If Aletsch Halbmarathon fits your goal, these courses play out about the same on our difficulty model.
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Rhylauf Half Marathon
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Forchlauf Halbmarathon
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