The 2017 American League Division Series were two best-of-five-games series held to determine the participating teams in the 2017 American League Championship Series. The three divisional winners (seeded 1-3) and a fourth team—the winner of a one-game Wild Card playoff—played in two series. These matchups were: * (1) Cleveland Indians (Central Division champions) versus (4) New York Yankees (Wild Card Game winner): Yankees win series 3–2. * (2) Houston Astros (West Division champions) versus (3) Boston Red Sox (East Division champions): Astros win series 3–1.