by David McAlpine

Last night on The Biggest Loser, the four remaining contestants competed to earn the two automatic spots in next week's live finale. The two who end up falling below the yellow line will face America's vote, with one making it to the $250,000 final weigh-in, while the other competes with the other castoffs for the $100,000 at-home prize.

Brett, Cara, Jillian and Bob were all on hand for the final four's first workout this week, and they were pushing them hard. I mean granted, they can do more than at the beginning, but none of these trainers were letting up on them.

For their final Pop Challenge, the contestants had to put to work all the knowledge that they've gotten from the ranch to make their own version of a turkey burger. The twist: they were making the burgers for kids, and the kids would vote on whose burger they liked the best. This meant it needed to be healthy and appeal to some very picky eaters. But, the prize was worth it: $5,000 and a vacation for a guest for two weeks at the Biggest Loser Resort at Fitness Ridge.

The competition came down to Hannah's cheesier-version of the faux-burger and Jay's "volcano burger," which kicked the healthy favorite up a couple notches. In a vote of 31-22, Jay was chosen as the winner of the challenge, and he promised to give the prize to his wife so she can continue her own weight loss journey.

For their final challenge on the ranch, it was the ever-inspirational "put the weight back on" challenge. Each contestant had to carry a golf bag around a golf course filled with weighted flags, each with a number, totaling how much weight they had lost since beginning the show. At each hole, they would have to drop a flag, thus at the end, dropping all of their weight. Symbolic and hard!

Hannah finished first, ahead of Irene, Olivia and Jay, winning $15,000 and a home gym. But, she wasn't the only winner: each contestant found out they'd be receiving a personal trainer to work with at home between the end of the ranch and the finale to get them in the best shape they can be.

But before they could leave, they had one last-chance workout with Bob, Jillian, Cara and Brett. It was intense, because they knew that every pound counted, because it could mean the difference between going home or winning it all.

The weigh-in results were as follows:

Hannah: -4 (-2.67%)
Olivia: -4 (-2.61%)
Irene: -3 (-2.04%)
Jay: -4 (-1.63%)

Sisters Hannah and Olivia broke records left and right this season, each reaching 100 pounds lost by a female, which had never been done on the show before this season. Now they were the first all-female team to reach the final four and the final three.

After the sisters celebrated, Irene and Jay made their pleas to America for their votes to send them into the final three. As the contestants make their way home to wrap up their transformation, who will you vote for: Irene or Jay?

(Photo courtesy of NBC)

For LIVE coverage of the Biggest Loser finale, follow David on Twitter (@DavidMcAlpine)! The live finale airs next Tuesday at 8/7c on NBC.