Smartest Challenge

1 of 9
Smartest Challenge
In Season 3, players had to climb rows and rows of stairs at the LA Coliseum by doing "the wave" from one end of the stadium to the other! (…
2 of 9
Smartest Challenge
In Season 3, each duo had to move a full ton of raw materials from one side of a warehouse to the other in order to win this challenge.
3 of 9
Smartest Challenge
For their final challenge, the Season 3 contestants completed a triathlon! (Winner)
4 of 9
Smartest Challenge
The first-ever Biggest Loser challenge during Season 1 involved pulling cars to a finish line!
5 of 9
The Biggest Loser
Smartest Challenge
The Season 9 players had to learn how to put their top cooking skills to good use with the help of Curtis Stone. (3rd)
6 of 9
The Biggest Loser
Smartest Challenge
The final challenge for Season 7 was that the contestants had only 26 days to train for a 26.2 mile marathon. (2nd)
7 of 9
Smartest Challenge
In Season 1, the teams had to build towers of temptation without using their hands!
8 of 9
Smartest Challenge
Season 2 involved lots of steps - 2,280 to be exact! Andrea and Mark went head to head - and the Blue Team won a $5,000 prize.
9 of 9
Smartest Challenge
In Season 5, the Red and Blue Teams had to focus on teamwork as they concentrated on climbing up a mall escalator without falling behind. (4…