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

What 20-to-1 means: When you see 20-to-1 odds, you're looking at a long shot that is unlikely to win. In fact, the implied win probability for a team that's 20-to-1 is 4.76%. However, should that long shot come in, it would pay outR$20 for everyR$1 wagered.

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