As of July 2026, The Biggest Loser Season 9 aired in 2010 with 19 episodes — streaming now on Amazon Prime Video. Full episode guide and where to watch below.
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The Biggest Loser Season 9

2010 19 Episodes Reality ⭐ 5/10

Right now you can watch The Biggest Loser Season 9 on and — and it is more addictive than the premise lets on. The show says what it needs to say in a single season, no filler. Its 5/10 TMDB score, built from 30 ratings, reflects a title that consistently delivers. Bob Harper anchors the format, but the whole cast makes it watchable. Put it on tonight and see for yourself.

The Biggest Loser Season 9 is not trying to be everything to everyone, and that focus is exactly what makes it work. What separates The Biggest Loser Season 9 from the rest of its genre is a genuine understanding of what its audience actually wants to watch. 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 prize, which was awarded to Michael Ventrella, the finalist with the highest percentage of weight lost. It first aired January 5, 2010. Bob Harper and Alison Sweeney lead a cast that brings real weight to the material. It was aired in 2010. What keeps The Biggest Loser Season 9 from feeling stale is a production that knows when to get out of the way. It knows exactly what it is, and does not try to be anything else.

Best watched with company, The Biggest Loser Season 9 generates takes from everyone in the room. It stands on its own even without an obvious comparison point. Best experienced as a single, sustained watch if your schedule allows. The casting and production never let it go stale. The kind of thing that disappears an evening without you noticing.

📡 Where to Watch The Biggest Loser Season 9

🇦🇺 Australia
🇺🇸 United States
🇬🇧 United Kingdom
🇨🇦 Canada
🇳🇿 New Zealand
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🎬 The Biggest Loser Season 9 — Episode Guide

E1
Week One
2010-01-05
Bob and Jillian take turns making phone calls to the latest couples that will be arriving at the ranch. Each trainer is met with loud cheers and crying on the other end of the phone. The couples also find out their initial weigh-ins will take place in front their entire community.
E2
The Biggest Loser Season 9 - Week Two
2010-01-12
Dr. Huizenga delivers sobering news to the contestants; the contestants compete in a balance challenge over a pool; Jillian Michaels encourages a contestant to face one of her biggest fears.
E3
Week 3
2010-01-19
The contestants assume the role of either teacher or student; a challenge grants immunity to the winning team; a contestant threatens to quit the competition.
E4
Season 9, Episode 4
2010-01-26
This week starts off with a high-stakes pop challenge in which contestants race for the prize of immunity - and the winning team also gets three envelopes to give to the teams of their choice with instructions that could have a dramatic impact at this week's weigh in. Also, tensions are high between...
E5
Season 9, Episode 5
2010-02-02
This week, contestants are surprised by the return of the blue and yellow teams, who were sent home after the first challenge of the season. Now they’re back, 30 days later, to weigh in and try to earn a spot back on the ranch. Then a vigorous football challenge tests everyone’s stamina, except for ...
E6
Season 9, Episode 6
2010-02-09
It’s a star-studded Olympic-themed episode of “The Biggest Loser: Couples” to help kick off the winter games! This week, the contestants head to Colorado to train like Olympic athletes at the U.S. Olympic training facility in Colorado Springs.
E7
Season 9, Episode 7
2010-03-02
This week's first challenge is a temptation with, literally, hundreds of cookies. Ali tells the teams that whoever wins this temptation challenge will get a huge reward: they'll be able to divide everyone into the two traditional teams, Blue and Black. Also, they could give one contestant immunity f...
E8
Season 9, Episode 8
2010-03-09
The teams pull trucks and load crates onto the vehicles for a challenge that ends with a puzzle. Later, the contestants work eight-hour shifts at the food bank and must learn to fit workout sessions into their schedules.
E9
Season 9, Episode 9
2010-03-16
The players compete in a 30-minute cook-off, which requires them to prepare an appetizer, entrée and dessert using only 12 ingredients. Judges Curtis Stone and Ali pick the best-tasting entries and name the winners, who receive a weigh-in advantage. Also: The winners of a surprise food-trivia challe...
E10
Week 10
2010-03-23
The contestants visit home and must continue dieting and exercising while away from the ranch. Soon after arriving, the players receive stationary bikes and learn they'll have to ride the distance of a full marathon. They can also add time to an opponent's ride by eating up to 48 mini-cupcakes.
E11
Season 9, Episode 11
2010-03-30
The teams are dissolved as eliminated contestants return to vie for spots back on the ranch. One player is chosen through a vote while another wins a spot during a step-up challenge. Later, a friendship between players begins to falter.
E12
Week 12
2010-04-06
The players have a chance to win immunity by becoming the first competitor to lose 2 percent of his or her body weight. Each person only has one chance to weigh in, however, adding a critical element of timing to the challenge. Later, the contestants hit the water for a race involving weights. Those...
E13
Season 9, Episode 13
2010-04-13
Suze Orman assesses the players' financial health and predicts who will win this season. Also: The contestants balance quarters on a platter to win a cash prize; a challenge to find keys in the pouring rain yields the winners a huge prize; and Bob holds workouts in the mud.
E14
Season 9, Episode 14
2010-04-20
The contestants choose food from a buffet table offering low- and high-calorie choices; Gabrielle Reece, pro volley ball player, leads a beach-circuit workout; a contestant gets devastating news.
E15
Season 9, Episode 15
2010-04-27
The players go to Dallas to run a 5K at the Cotton Bowl and recruit locals to join them for the race. Later, a contestant wins immunity by wrangling calves in a rodeo challenge; and Season 8 contestant Abby Rike asks Jillian to speak at her high school.
E16
Season 9, Episode 16
2010-05-04
The final six contestants receive makeovers, which include a $1000 shopping spree and a salon visit with stylist Jonathan Antin. After the transformations, the players reveal their new looks to family and friends and attend a concert by Ashanti. Later, the contestants are suspended over a pool while...
E17
Season 9, Episode 17
2010-05-11
Quarterback Tony Romo takes the contestants on a hike; past winners Helen Phillips and Erik Chopin discuss the challenges of keeping weight off away from the ranch. Also: Dr. Huizenga offers health updates; the players race over hills of sand while carrying the amount of weight they've lost; Bob and...
E18
Season 9, Episode 18
2010-05-18
The players train for a marathon at home and must work to stay on track while away from the ranch. During the race, the contestants receive support from former players and family members. Later, Bob and Jillian hold last-chance workouts before the weigh-in, which determines who's moving on to the fi...
E19
Season 9 Finale
2010-05-25
After viewer votes determine the third finalist, the winner of the $250,000 prize is crowned in the Season 9 finale. The eliminated players also return to weigh in for the $100,000 at-home prize, and former contestants share their weight-loss progress since leaving the show.

🎭 Cast of The Biggest Loser Season 9

Bob Harper
Bob Harper
Self
Alison Sweeney
Alison Sweeney
Self - Host
Jillian Michaels
Jillian Michaels
Self

📋 All Seasons of The Biggest Loser

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