4 Deserts

The 4 Deserts Ultramarathon Series is an annual series of four 250-kilometer (155-mile) races across deserts around the globe. The races were recognized as the world's leading endurance footrace series by TIME magazine in 2009 and 2010, as the "Ultimate test of human endurance". The series was founded by American Mary K Gadams who founded RacingThePlanet in 2002. Competitors can enter any of the individual multiday races within the 4 Deserts Race Series, but if they wish to take part in The Last Desert (Antarctica) they must successfully finish at least two of the other races in the series.

4 Deserts

The 4 Deserts Ultramarathon Series is an annual series of four 250-kilometer (155-mile) races across deserts around the globe. The races were recognized as the world's leading endurance footrace series by TIME magazine in 2009 and 2010, as the "Ultimate test of human endurance". The series was founded by American Mary K Gadams who founded RacingThePlanet in 2002. Competitors can enter any of the individual multiday races within the 4 Deserts Race Series, but if they wish to take part in The Last Desert (Antarctica) they must successfully finish at least two of the other races in the series.