Country Music Marathon & 1/2 Marathon The season 7 finale for The Biggest Loser: Couples airs tomorrow night on NBC at 8:00 ET, with race footage from the Country Music Marathon likely to be shown. Cousins and Biggest Loser teammates Dane Patterson and Blaine Cotter completed the marathon in Nashville with a time of 5:47:20 and are eligible for the $100,000 at-home contest, which will be awarded on the show. Tune in to see if they win!