the ninth season of the australian version of the original nbc reality television series "the biggest loser", known as the biggest loser australia: challenge australia, premiered on 19 january 2014 on network ten. this season saw the trainers head to ararat, victoria, which at the time of filming was victoria's fattest town in order to change the lifestyles of its residents before bringing a select few residents back to the biggest loser house to compete for the title and prize money. season 9 was won by craig booby.