Major League Baseball

Major League Baseball is divided into two leagues, the American and the National League and has existed since 1903. The Major League baseball season runs from March or April until September or October. Spring training comes before the main season, usually in February. The playoffs follow the regular season, culminating in the World Series in October.

American League

• Baltimore Orioles
• Boston Red Sox
• Chicago White Sox
• Cleveland Indians
• Detroit Tigers
• Kansas City Royals
• Los Angeles Angels
• Minnesota Twins
• New York Yankees
• Oakland Athletics
• Seattle Mariners
• Tampa Bay Devil Rays
• Texas Rangers
• Toronto Blue Jays

National League

• Atlanta Braves
• Cincinnati Reds
• Colorado Rockies
• Florida Marlins
• Houston Astros
• Los Angeles Dodgers
• Milwaukee Brewers
• New York Mets
• Philadelphia Phillies
• Pittsburgh Pirates
• Saint Louis Cardinals
• San Diego Padres
• San Francisco Giants
• Washington Nationals