The Swiss Irontrail ultramarathon, now in its second year, is the longest and highest single-stage running event in Europe. The race, which takes place this weekend, covers 201.4 km (125.2 miles) through the Alps in the Graubünden region of Switzerland. It promises to be a tough and demanding event that will test both the mental and physical endurance of the athletes.
One of those athletes is ultrarunner Rebecca Byerly who has been prepping for the Irontrail and creating a series of training videos for Mammut in the process. In the video below, you’ll see Rebecca and friends running a 222 km (137 mile) race known as La Ultra – The High, which takes place in the foothills of the Himalaya. The race climbs through the Khardung-La pass, which falls at an altitude of 5395 meters (17,700 ft), making this a truly difficult high altitude challenge. Just another day in the life of an ultra-runner who is preparing for even more challenging races to come.
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