Late Sunday afternoon, when New York Giants kicker Graham Gano lined up for a 34-yard field goal with 19 seconds left against the Arizona Cardinals, FanDuel found itself on the hook for more than $20 million, one of the sportsbook's largest payouts ever on a long shot NFL prop bet. Here's how it went down.

The unnamed sports fan put together a 50-leg multi with Sportsbet and picked all 50 of his selections correctly to earn a total ofR$170,330.95.