The American League Championship Series is the championship of the American League. The winner wins the AL pennant and moves on to the World Series.
ALCS Matchups since 1988[]
- 1988: Oakland Athletics over Boston Red Sox
- 1989: Oakland Athletics over Toronto Blue Jays
- 1990: Oakland Athletics over Boston Red Sox
- 1991: Minnesota Twins over Toronto Blue Jays
- 1992: Toronto Blue Jays over Oakland Athletics
- 1993: Toronto Blue Jays over Chicago White Sox
- 1994: Cancelled due to MLB players' strike
- 1995: Cleveland Indians over Seattle Mariners
- 1996: New York Yankees over Baltimore Orioles
- 1997: Cleveland Indians over Baltimore Orioles
- 1998: New York Yankees over Cleveland Indians
- 1999: New York Yankees over Boston Red Sox
- 2000: New York Yankees over Seattle Mariners
- 2001: New York Yankees over Seattle Mariners
- 2002: Anaheim Angels over Minnesota Twins
- 2003: New York Yankees over Boston Red Sox
- 2004: Boston Red Sox over New York Yankees
- 2005: Chicago White Sox over Los Angeles Angels
- 2006: Detroit Tigers over Oakland Athletics
- 2007: Boston Red Sox over Cleveland Indians
- 2008: Tampa Bay Rays over Boston Red Sox
- 2009: New York Yankees over Los Angeles Angels
- 2010: Texas Rangers over New York Yankees
- 2011: Texas Rangers over Detroit Tigers
- 2012: Detroit Tigers over New York Yankees
- 2013: Boston Red Sox over Detroit Tigers
- 2014: Kansas City Royals over Baltimore Orioles
- 2015: Kansas City Royals over Toronto Blue Jays