In this intense obstacle course series, elite athletes from the U.S. and other countries compete for cash prizes, individual glory and national pride.
Tiki Barber , Rafin'ia Bastos , Luis Ernesto Franko , Inés Sainz , Anderson Silva , Saiaka Akimoto , B'ianka Balti , Terri Krius , Sara-Dzhein Dias , Kris Distefano
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