One bettor won more than a half-million dollars by hitting an insane parlay during Championship Sunday in the NFL. The lucky winner turned their $20 site credit on FanDuel into $579,000 by correctly guessing the winners and exact score of both conference championship games. There's 55 555. There's just 55 555.

Select four digits and place bets on all its possible combinations. For System Entry, each 4D number combination costs a minimum of $1. For iBet, all 4D number combinations cost a minimum of $1 in total. Your prize money is proportionately divided by the number of combinations.