Watch The Biggest Loser Season 13 Episode 18 - Week 18 - Finale
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Episode Guide
| Season 13 | ||
| Episode 1 | Week 1 | January 03, 2012 |
| Episode 2 | Week 2 | January 10, 2012 |
| Episode 3 | Week 3 | January 17, 2012 |
| Episode 4 | Week 4 | January 24, 2012 |
| Episode 5 | Week 5 | January 31, 2012 |
| Episode 6 | Week 6 | February 07, 2012 |
| Episode 7 | Week 7 | February 14, 2012 |
| Episode 8 | Week 8 | February 21, 2012 |
| Episode 9 | Week 9 | February 28, 2012 |
| Episode 10 | Week 10 | March 06, 2012 |
| Episode 11 | Week 11 | March 13, 2012 |
| Episode 12 | Week 12 | March 20, 2012 |
| Episode 13 | Week 13 | March 27, 2012 |
| Episode 14 | Week 14 | April 03, 2012 |
| Episode 15 | Week 15 | April 10, 2012 |
| Episode 16 | Week 16 | April 17, 2012 |
| Episode 17 | Week 17 | April 24, 2012 |
| Episode 18 | Week 18 - Finale | May 01, 2012 |
| Season 18 | ||
| Episode 1 | Time For Change | January 28, 2020 |
| Episode 2 | A Big Loss | February 04, 2020 |