And Tracey and Mozziz ("Coach Mo") are hospitalized following the challenge.
Another change to the format this year is that the two trainers will work with all contestants rather than splitting the contestants into two camps and creating an imagined competition between the two trainers.
In the fifth week, when teams are changed to blue and black, Jillian leads black while Bob leads blue.
The contestants competed to win a $250,000 prize, which was awarded to Danny Cahill, the contestant with the highest percentage of weight lost.
This season premiered on NBC on Tuesday, September 15, 2009.
Daniel Wright is brought to the race separate from the other contestants and introduced as a surprise to them.
Daniel wins the race, Allen came in 2nd, Amanda came in 3rd, Rebecca 4th, Dina and Rudy both came in 5/6th, Abby came in 7th, Antoine 8th, Liz 9th Alexandra in 10th, Júlio 11th, Danny 12th, Sean 13th, Shay came in 14th, Coach MO 15th and Tracey came in 16th even though she would have been fourth or third but she ran out of energy so she collapsed.
Back at the ranch, the contestants share their stories before picking teams.
Daniel, winning the race, has first choice of teammates and chooses Shay as his partner, granting her immunity as well for the first week.
First aired September 15, 2009 Before arriving on the Biggest Loser Ranch, the contestants are given a challenge: a footrace along the last mile of the Biggest Loser Marathon from Season 7.