The Biggest Loser season 15

The Biggest Loser: Second Chances 2 is the fifteenth season of the NBC reality television series entitled The Biggest Loser. The contestants competed to win the $250,000 prize, which was awarded to Rachel Frederickson. It premiered on October 15, 2013. This was the first season to introduce a trainer save, in which each trainer could choose to save one contestant on their team from being sent home as a result falling below the red line.

The season was won by Rachel Frederickson, weighing in at only 105 pounds. Mass-media had raised concern, wondering if that was a healthy weight loss. In the same month after the finale, Fredrickson regained 20 pounds to reach her 'perfect weight', putting her at 125 pounds.