This is often considered Buffalo's most famous rivalry. Though the Bills and Dolphins both originated in the American Football League, the Dolphins did not start playing until 1966 as an expansion team while the Bills were one of the original eight teams. The rivalry first gained prominence when the Dolphins won every match-up against the Bills in the 1970s for an NFL-record 20 straight wins against a single opponent (the Bills defeated the Dolphins in their first matchup of the 1980s). Fortunes changed in the following decades with the rise of Jim Kelly as Buffalo's franchise quarterback, and though Kelly and Dolphins quarterback Dan Marino shared a competitive rivalry in the 1980s and 1990s, the Bills became dominant in the 1990s. Things have since cooled down after the retirements of Kelly and Marino and the rise of the New England Patriots, but Miami remains a fierce rival of the Bills, coming in second place in a recent poll of Buffalo's primary rival, and the two teams have typically been close to each other in win-loss records. Miami leads the overall series 61–50–1 as of 2019, but Buffalo has the advantage in the playoffs at 3–1, including a win in the 1992 AFC Championship Game.