Baseball World Series

World Series
The Commissioner's Trophy is awarded to the team that wins the World Series.
First played	1903
Most recently played	2017
Current champions	Houston Astros (2017) (1st title)
Current runners-up	Los Angeles Dodgers
Most titles	New York Yankees (27)

The World Series is the annual championship series of Major League Baseball (MLB) in North America, contested since 1903 between the American League (AL) champion team and the National League (NL) champion team. The winner of the World Series championship is determined through a best-of-seven playoff, and the winning team is awarded the Commissioner's Trophy. As the series is played during the fall season in North America, it is sometimes referred to as the Fall Classic.

Prior to 1969, the team with the best regular season win-loss record in each league automatically advanced to the World Series; since then each league has conducted a championship series (ALCS and NLCS) preceding the World Series to determine which teams will advance. As of 2017, the World Series has been contested 113 times, with the AL winning 65 and the NL winning 48.

The 2017 World Series took place between the Los Angeles Dodgers and Houston Astros. Seven games were played, with the Astros victorious after game seven, played in Los Angeles. The final score was 5–1. This was the first World Series won by the Astros.

In the American League, the New York Yankees have played in 40 World Series and won 27, the Philadelphia/Kansas City/Oakland Athletics have played in 14 and won 9, and the Boston Red Sox have played in 12 and won 8, including the first World Series. In the National League, the St. Louis Cardinals have appeared in 19 and won 11, the New York/San Francisco Giants have played in 20 and won 8, the Brooklyn/Los Angeles Dodgers have appeared in 19 and won 6, and the Cincinnati Reds have appeared in 9 and won 5.