

Reality
The Best Episodes of The Biggest Loser Season 9
Every episode of The Biggest Loser Season 9 ranked from best to worst. Discover the Best Episodes of The Biggest Loser Season 9!

Reality
The Best Episodes of The Biggest Loser Season 9
Every episode of The Biggest Loser Season 9 ranked from best to worst. Discover the Best Episodes of The Biggest Loser Season 9!
The Biggest Loser features obese people competing to win a cash prize by losing the highest percentage of weight relative to their initial weight.
Seasons18
Season 9 Ratings Summary
"Week One" is the best rated episode of "The Biggest Loser" season 9. It scored 5.2/10 based on 17 votes. Directed by Unknown and written by Unknown, it aired on 1/5/2010. This episode is rated 1.3 points higher than the second-best, "The Biggest Loser Season 9 - Week Two".