The 2018 World Series was the championship series of Major League Baseball's 2018 season. The 114th edition of the World Series, it was a best-of-seven playoff played between the American League (AL) champion Boston Red Sox and the National League (NL) champion Los Angeles Dodgers. The Red Sox defeated the Dodgers in five games to win their fourth World Series title in 15 years dating back to 2004, and their ninth in franchise history. This was the second World Series matchup between the two franchises, after the Red Sox defeated the Brooklyn Robins (later known as the Dodgers) in five games in 1916. The series was sponsored by the Internet television service YouTube TV and officially known as the 2018 World Series presented by YouTube TV.
The Series was televised in the United States on Fox. Steve Pearce won the World Series Most Valuable Player Award, while Alex Cora became the fifth first-season manager and first manager from Puerto Rico to win the World Series. The Series was notable for its third game which lasted 18 innings, a World Series record.
The 2018 World Series was the first since 2000 to feature two teams which had also reached the postseason in the prior year. Additionally, the Red Sox became the first team to win two World Series exactly one century apart, as they had defeated the Chicago Cubs in 1918, while the Dodgers were the first team since the 2011 Texas Rangers, and the first NL team since the 1992 Atlanta Braves, to lose consecutive Fall Classics.