<P> The 2015 World Series was the championship series of Major League Baseball 's ( MLB ) 2015 season . The 111th edition of the World Series , it was a best - of - seven playoff between the National League ( NL ) champion New York Mets and the American League ( AL ) champion Kansas City Royals . The series was played between October 27 and November 1 , with the Royals winning the series 4 games to 1 . It was the first time since the 2010 World Series that the World Series extended into November . The Royals became the first team since the Oakland Athletics in the 1989 World Series to win the World Series after losing in the previous year . It was the first World Series to feature only expansion teams and the first since the 2007 World Series to not feature the Philadelphia Phillies , St. Louis Cardinals , or San Francisco Giants as the NL champions . </P>
last world series that did n 't go 7 games
2015