Location: Death Valley, USA
Year: 2017
Distance: 217 km
Conditions: 55 degrees

Covering 217km non-stop from Death Valley to Mt. Whitney, CA, the Badwater® 135 is the most demanding and extreme running race offered anywhere on the planet. The start line is at Badwater Basin, Death Valley, which marks the lowest elevation in North America at 280’ (85m) below sea level. The race finishes at Whitney Portal at 8,300’ (2530m), which is the trailhead to the Mt. Whitney summit, the highest point in the contiguous United States. The Badwater 135 course covers three mountain ranges for a total of 14,600’ (4450m) of cumulative vertical ascent and 6,100’ (1859m) of cumulative descent. Competitors travel through places or landmarks with names like Mushroom Rock, Furnace Creek, Salt Creek, Devil’s Cornfield, Devil’s Golf Course, Stovepipe Wells, Panamint Springs, Darwin, Keeler, Lone Pine, Alabama Hills, and the Sierra Nevada.

The Ancient Khmer Path

Location: Cambodian jungle
Year: 2012
Distance: km

Krasse Gueorguiev successfully completed The Ancient Khmer Path 6 day race through Cambodian jungle, finishing at one of the most iconic Buddhist temples in the world. The Mighty Angkor Wat

Arctic Circle

Location: Norway, Finland, Sweden
Distance: 400 miles
Conditions: -45 degrees

The Frostskade 500 is a remote Polar Expedition race in the Arctic Circle travelling through Norway, Finland, and Sweden, and covering distances of 100, 250, or the full 400 miles. Cross-country skiing or running, competitors pull pulks containing all expedition equipment and-crucially-camp each night in temperatures as low as minus 45C.

Marathon des Sables

Location: Sahara Desert
Distance: 250 km
Conditions: 52 degrees

The Marathon des Sables is the stuff of legends. It is The Toughest Footrace on Earth. Marathon des Sables is a truly gruelling multi-stage adventure through a mythical landscape in one of the world’s most inhospitable environments – the Sahara desert. You have to be self-sufficient and carry all your own food and equipment for the week on your back. Communal goat’s-hair Berber tents are pitched every night but, apart from that you have to take it with you. Water is rationed and if you exceed the ration, you get a time penalty.

Brasil 135+ ultramarathon

Location: Brasil
Distance: 257 km

257 km self-supported race starting at São Joao da Boa Vista going through the heart of Brasil where the time limit is 60 hours.