In 2006 a fourth race Competition , called Name_conferral The Last Desert , took place Process_start in Antarctica and was the first year in which all 4 Deserts races Competition were held Hold in the same calendar year .

Competitors can enter Becoming_a_member any of the individual multiday races Competition within the 4 Deserts Race Series , but if they wish Request to take part Dispersal in The Last Desert ( Antarctica ) they must successfully finish Process_end at least two of the other races Competition in the series .

The tour visited Traveling all continents , except Antarctica , and was ranked Placing as the fifth highest-grossing tour of 2012 by Pollstar .