Major League Baseball facts for kids

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T205 Cy Young
Cy Young, 1911 baseball card

Major League Baseball (MLB) is a professional baseball league in North America. It is the highest level of professional baseball in the world. There are two leagues that make up the MLB: the American League, also called AL, and National League, also called NL. MLB owns everything that happens in major league baseball games. It also includes MLB Productions and MLB Advanced Media, which are in charge of major league baseball games on television and the teams and company web pages. There are currently 30 teams in MLB, 29 from the United States and one from Canada, the Toronto Blue Jays.

Major League Format

The 30 teams in MLB are divided into two leagues: American and National. Each league is divided into three divisions: East, Central, West. Since the 2013 season, each division has five teams. The most recent change took place after the 2012 season, when the Houston Astros moved from the NL Central to the AL West.

Each team in Major League Baseball is scheduled to play a 162-game season. This season begins in April (or sometimes the end of March) and ends in October. The teams play other teams in their own division the most, and play very few (no more than six) games against teams in the other league. Teams usually play each other in series of three or four games at a time. If a game is cancelled because of bad weather, it may be held again at a different date, sometimes as part of a doubleheader (two games in one day). Sometimes these games are not held again if it would not affect either team's place in the standings (the list of teams ordered by their number of wins and losses). If teams are tied at the end of a season, and at least one of the tied teams cannot make the playoffs, they will play an extra game (or, with more than one team involved, a series of single games) to decide which team(s) will make the playoffs. However, these games are played only to decide which team (or teams) is out of the playoffs. If the tied teams will all make the playoffs, tiebreakers are used to decide playoff seeding.

In July, there are three days where teams do not play normal games, and a group of players voted on by fans play in the "Major League Baseball All-Star Game". This period is called the "All-Star Break", and it is thought of as the point where half of the season is over. Lately, some games at the beginning of the regular season have been played in other countries, such as Japan;)

There is one difference between games played in the American League and games played in the National League. The American League teams play with a "designated hitter", a player who bats in place of the pitcher and does not play in the field. In the National League, the pitcher must bat along with the other players. In games played in teams from both leagues, the rule that the home team usually plays by is used.

At the end of every season, ten teams play in the playoffs. Five teams from the AL, and five teams from the NL are in the playoffs. The team from the West, Central, or East division from each league with the most wins makes the playoffs (a team with the best record in its division is said to have "won its division". The next two best teams in the AL and the next two best teams in the NL also get to play in the playoffs. They are called "wild card" teams. The first playoff round is called the Wild Card game. The two wild card teams from each league play each other in a one-game playoff. The winner of each game moves on to the Division Series. The team with the best record in each league plays the winner of its league's Wild Card game. The division winner with the second best record plays against the division winner with the third best record.

In the Division Series, teams play "best out of 5". Once one team beats the other three times, the winning team moves onto the next round of the playoffs. The teams that lose are out of the playoffs. The AL teams that win play in the AL Championship Series. The NL teams that win play in the NL Championship Series. The Championship series is "best out of 7 games". Once one team beats the other four times, the winning team moves onto the next round of the playoffs. After the Championship Series, there are only two teams left. These two teams play each other in the World Series, which is also a "best out of 7 games" series. The winner of the World Series is the champion of the league.

Major League History

A baseball team and its uniforms in the 1870s. Note that the team is integrated, in contrast to 20th century MLB, which was segregated until 1947.

The first league of professional baseball teams began in 1871 and was called the National Association. This league did not play baseball the same way MLB does. For example, batters would walk after nine pitches instead of four. Many of the teams had problems with money and split up after only one or two seasons. However two teams are still playing today. Those teams were the Boston Red Stockings, which today are the Atlanta Braves, and the Chicago White Stockings, which today are the Chicago Cubs. In 1876, a league that was run better, the National League, began, and included the Red and White Stockings as well as six other teams. Even though this league was run better, many teams still would split up after only a few seasons, though some, like the teams that are now called the Philadelphia Phillies and San Francisco Giants, are also still playing today. There were other leagues also. The American Association started in 1882 and was almost as good as the National League. However many of its teams would go to the National League, and the American Association disappeared in 1891. The National League had problems, though. Players and fans did not behave well, and once a fire that destroyed part of Boston happened during a game.

List of teams

Division Team City Stadium Capacity Coordinates Founded Joined
American League
East Baltimore Orioles Baltimore, MD Oriole Park at Camden Yards 45,971 1901*
Boston Red Sox Boston, MA Fenway Park 37,949 1901
New York Yankees New York City, NY Yankee Stadium 49,638 1901*
Tampa Bay Rays St. Petersburg, FL Tropicana Field 31,042 1998
Toronto Blue Jays Toronto, ON Rogers Centre 49,282 1977
Central Chicago White Sox Chicago, IL Guaranteed Rate Field 40,615 1901
Cleveland Indians Cleveland, OH Progressive Field 35,225 1901
Detroit Tigers Detroit, MI Comerica Park 41,297 1901
Kansas City Royals Kansas City, MO Kauffman Stadium 37,903 1969
Minnesota Twins Minneapolis, MN Target Field 38,871 1901*
West Houston Astros Houston, TX Minute Maid Park 41,676 1962 (NL) 2013 (AL)
Los Angeles Angels of Anaheim Anaheim, CA Angel Stadium 45,957 1961
Oakland Athletics Oakland, CA Oakland Alameda Coliseum 35,067 1901*
Seattle Mariners Seattle, WA Safeco Field 47,943 1977
Texas Rangers Arlington, TX Globe Life Park in Arlington 48,114 1961*
National League
East Atlanta Braves Cumberland, GA SunTrust Park 41,500 1871* (NA) 1876 (NL)
Miami Marlins Miami, FL Marlins Park 36,742 1993
New York Mets New York City, NY Citi Field 41,922 1962
Philadelphia Phillies Philadelphia, PA Citizens Bank Park 43,651 1883
Washington Nationals Washington, D.C. Nationals Park 41,313 1969*
Central Chicago Cubs Chicago, IL Wrigley Field 41,268 1874 (NA) 1876 (NL)
Cincinnati Reds Cincinnati, OH Great American Ball Park 42,319 1882 (AA) 1890 (NL)
Milwaukee Brewers Milwaukee, WI Miller Park 41,900 1969* (AL) 1998 (NL)
Pittsburgh Pirates Pittsburgh, PA PNC Park 38,362 1882 (AA) 1887 (NL)
St. Louis Cardinals St. Louis, MO Busch Stadium 43,975 1882 (AA) 1892 (NL)
West Arizona Diamondbacks Phoenix, AZ Chase Field 48,519 1998
Colorado Rockies Denver, CO Coors Field 50,398 1993
Los Angeles Dodgers Los Angeles, CA Dodger Stadium 56,000 1884* (AA) 1890 (NL)
San Diego Padres San Diego, CA Petco Park 40,162 1969
San Francisco Giants San Francisco, CA AT&T Park 41,915 1883*

An star (*) indicates a relocation of a franchise. See team articles for more information.

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