Season
- Season 0 2007-09-04
- Season 1 2004-10-19
- Season 2 2005-09-13
- Season 3 2006-09-20
- Season 4 2007-09-11
- Season 5 2008-01-01
- Season 6 2008-09-16
- Season 7 2009-01-06
- Season 8 2009-09-15
- Season 9 2010-01-05
- Season 10 2010-09-21
- Season 11 2011-01-04
- Season 12 2011-09-20
- Season 13 2012-01-03
- Season 14 2013-01-06
- Season 15 2013-10-08
- Season 16 2014-09-11
- Season 17 2016-01-04
- Season 18 2020-01-28
Season 18 Episode
- Season 7 Season Premiere
- Season 7 Bob goes angry
- Season 7 Temptations suck
- Season 7 Super Bowl
- Season 7 Home Team Weigh-In
- Season 7 The Biggest Loser Season 7 Episode 6
- Season 7 Gym Keys
- Season 7 Black and Blue Part 1
- Season 7 Black and Blue Part 2
- Season 7 Chef Rocco DiSpirito
- Season 7 24 Hour Fitness Relay Race
- Season 7 Contestants Go Home for a Week and Complete Half-Marathons
- Season 7 The Teams Split Up
- Season 7 Blast from the Past
- Season 7 Only One Vote
- Season 7 The Makeover Episode
- Season 7 Trivia Quiz
- Season 7 Contestants Get to Train Their Trainers!
- Season 7 Running a Full Marathon!
- Season 7 Finale
- Season 7 Finale Part 2
The Biggest Loser - Season 7 Episode 19 Running a Full Marathon!
5.50 90 minutes The final four contestants go home for 30 days, reunite with friends and family and experience firsthand the challenge of continuing to make diet and exercise a priority back at home. Contestants also learn from host Alison Sweeney what their final challenge of the season will be - running a full marathon when they return to the ranch for their final weigh-in. Completing the full 26.2 mile course will be their toughest challenge yet, but cheering them on along the way are some past season "Biggest Losers"- grand prize winners Ali Vincent and Michelle Aguilar, plus "at home" winners Jim Germanakos, Heba Salama and Bernie Salazar. And as an added incentive, each player who finishes the marathon will get $10,000 to donate to the charity of their choice. Later, it's the very last "last chance workouts" with trainers Bob Harper and Jillian Michaels before a final weigh in determines who the two definite finalists will be - and which two contestants fall below the dreaded yellow line, leaving America to vote which one will be the third finalist to compete for the grand prize of $250,000.
