Producers of The Biggest Loser wanted a challenge where contestants had to run the entire length of a football field while pulling a rope that raised a barrel of changing weight up and down. In order to translate directly, we would have had to build a structure 300 feet high in order for them to go the whole distance. Using a creative 7.5:1 haul system and some self-erecting towers from SGPS Showrig, we were able to accomplish the feat. All in all it was a seamless challenge.