2019 MLB Season
30 teams competed during the regular season
Washington Nationals defeated Houston Astros for the championship
It was the 150th anniversary of professional baseball, dating back to the 1869 foundation of the Cincinnati Red Stockings. The postseason began on October 1. The World Series began October 22 and ended October 30 with the Washington Nationals defeating the Houston Astros in seven games to win their first World Series championship. The entire schedule was released on August 22, 2018.
The 90th Major League Baseball All-Star Game was held on July 9 at Progressive Field, home of the Cleveland Indians. The American League won, 4–3, for its seventh straight victory.
This was the final season when anyone on the 40-man expanded roster could be used in games from September 1 through the end of the regular season (so-called September call-ups).