Season 1

Season 1 of The Biggest Loser premiered on October 19, 2004

The Biggest Loser (season 1) is the first season of the NBC reality television series entitled The Biggest Loser, which premiered on October 19, 2004....Read more

Season 2

Season 2 of The Biggest Loser premiered on September 13, 2005

The Biggest Loser (season 2) is the second season of the NBC competitive reality television series entitled The Biggest Loser. The second season premi...Read more

Season 3

Season 3 of The Biggest Loser premiered on September 20, 2006

The Biggest Loser (season 3) is the third season of the NBC reality television series entitled The Biggest Loser. The third season premiered on Septem...Read more

Season 4

Season 4 of The Biggest Loser premiered on September 11, 2007

The Biggest Loser (season 4) is the fourth season of the NBC reality television series entitled The Biggest Loser. The fourth season premiered on Sept...Read more

Season 5

Season 5 of The Biggest Loser premiered on January 1, 2008

The Biggest Loser: Couples is the fifth season of the NBC reality television series The Biggest Loser. The fifth season premiered on January 1, 2008 w...Read more

Season 6

Season 6 of The Biggest Loser premiered on September 16, 2008

The Biggest Loser: Families is the sixth season of the NBC reality television series The Biggest Loser. The sixth season premiered on September 16, 20...Read more

Season 7

Season 7 of The Biggest Loser premiered on January 6, 2009

The Biggest Loser: Couples 2 is the seventh season of the NBC reality television series The Biggest Loser. The season premiered on January 6, 2009, wi...Read more

: second chances

Season 8 of The Biggest Loser premiered on September 15, 2009

The Biggest Loser: Second Chances is the eighth season of the NBC reality television series The Biggest Loser. The contestants competed to win a $250,...Read more

Season 9

Season 9 of The Biggest Loser premiered on January 5, 2010

The Biggest Loser: Couples 3 is the ninth season of the NBC reality television series The Biggest Loser. The contestants competed to win a $250,000 pr...Read more

Season 10

Season 10 of The Biggest Loser premiered on September 21, 2010

The Biggest Loser: Pay It Forward is the tenth season of the NBC reality television series entitled The Biggest Loser. The contestants competed to win...Read more

Season 11

Season 11 of The Biggest Loser premiered on January 4, 2011

The Biggest Loser: Couples 4 is the eleventh season of the NBC reality television series entitled The Biggest Loser. The contestants competed to win a...Read more

Season 12

Season 12 of The Biggest Loser premiered on September 20, 2011

The Biggest Loser: Battle of the Ages is the twelfth season of the NBC reality television series entitled The Biggest Loser. The contestants competed ...Read more

Season 13

Season 13 of The Biggest Loser premiered on January 3, 2012

The Biggest Loser: No Excuses is the thirteenth season of the NBC reality television series entitled The Biggest Loser. The contestants competed to wi...Read more

Season 14

Season 14 of The Biggest Loser premiered on January 6, 2013

The Biggest Loser: Challenge America is the fourteenth season of the NBC reality television series entitled The Biggest Loser. The contestants will co...Read more

Season 15

Season 15 of The Biggest Loser premiered on October 8, 2013

Season 16

Season 16 of The Biggest Loser premiered on September 11, 2014

Season 17

Season 17 of The Biggest Loser premiered on January 4, 2016

Season 18

Season 18 of The Biggest Loser premiered on January 28, 2020