Baseball is a bat-and-ball sport played between two teams of nine players each, taking turns batting and fielding. The game occurs over the course of several plays, with each play generally beginning when a player on the fielding team, called the pitcher, throws a ball that a player on the batting team, called the batter, tries to hit with a bat. The objective of the offensive team is to hit the ball into the field of play, away from the other team's players, allowing its players to run the bases, having them advance counter-clockwise around four bases to score what are called "runs". The objective of the defensive team is to prevent batters from becoming runners, and to prevent runners' advance around the bases. A run is scored when a runner legally advances around the bases in order and touches home plate.
Major League Baseball (MLB) is a professional baseball league and the highest level of organized baseball in the United States and Canada. One of the big four major leagues, MLB comprises 30 teams, divided equally between the National League (NL) and the American League (AL), with 29 in the United States and 1 in Canada. Formed in 1876 and 1901, respectively, the NL and AL cemented their cooperation with the National Agreement in 1903, making MLB the oldest major professional sports league in the world. They remained legally separate entities until 2000, when they merged into a single organization led by the Commissioner of Baseball. MLB is headquartered in Midtown Manhattan.
The Negro leagues were United States professional baseball leagues comprising teams of African Americans. The term may be used broadly to include professional black teams outside the leagues and it may be used narrowly for the seven relatively successful leagues beginning in 1920 that are sometimes termed "Negro Major Leagues".
The Atlantic League of Professional Baseball (ALPB) is a professional independent baseball league based in the United States. It is an official MLB Partner League based in the Mid-Atlantic and Southeastern United States. The Atlantic League's corporate headquarters is located at Clipper Magazine Stadium in Lancaster, Pennsylvania.
Nippon Professional Baseball is a professional baseball league and the highest level of baseball in Japan. Locally, it is often called Puro Yakyū (プロ野球), meaning simply Professional Baseball; outside of Japan, NPB is often referred to as "Japanese baseball."
In professional sports, as opposed to amateur sports, participants receive payment for their performance. Professionalism in sport has come to the fore through a combination of developments. Mass media and increased leisure have brought larger audiences, so that sports organizations or teams can command large incomes. As a result, more sportspeople can afford to make sport their primary career, devoting the training time necessary to increase skills, physical condition, and experience to modern levels of achievement. This proficiency has also helped boost the popularity of sports. In most sports played professionally there are many more amateur than professional players, though amateurs and professionals do not usually compete.
In baseball, the field manager is the equivalent of a head coach who is responsible for overseeing and making final decisions on all aspects of on-field team strategy, lineup selection, training and instruction. Managers are typically assisted by a staff of assistant coaches whose responsibilities are specialized. Field managers are typically not involved in off-field personnel decisions or long-term club planning, responsibilities that are instead held by a team's general manager.
The All-American Girls Professional Baseball League (AAGPBL) was a professional women's baseball league founded by Philip K. Wrigley, which existed from 1943 to 1954. The AAGPBL is the forerunner of women's professional league sports in the United States. Over 600 women played in the league, which eventually consisted of 10 teams located in the American Midwest. In 1948, league attendance peaked at over 900,000 spectators. The most successful team, the Rockford Peaches, won a league-best four championships.
The National Association of Professional Base Ball Players (NAPBBP), often known simply as the National Association (NA), was the first fully-professional sports league in baseball. The NA was founded in 1871 and continued through the 1875 season. It succeeded and incorporated several professional clubs from the previous National Association of Base Ball Players (NABBP) of 1857–1870, sometimes called "the amateur Association". In turn, several NA clubs created the succeeding National League of Professional Baseball Clubs, which joined with the American League of Professional Base Ball Clubs to form Major League Baseball (MLB) in 1903.
Professional baseball is organized baseball in which players are selected for their talents and are paid to play for a specific team or club system. It is played in leagues and associated farm teams throughout the world.
Rickwood Field, located in Birmingham, Alabama, is the oldest existing professional baseball park in the United States. It was built for the Birmingham Barons in 1910 by industrialist and team-owner Rick Woodward and has served as the home park for the Birmingham Barons and the Birmingham Black Barons of the Negro leagues.
An independent baseball league is a professional baseball league in the United States or Canada that is not overseen by Major League Baseball or its affiliated Minor League Baseball system.
The Chinese Professional Baseball League is the top-tier professional baseball league in Taiwan. The league was established in 1989 and played the first season in 1990. CPBL eventually absorbed the competing Taiwan Major League in 2003. As of the 2024 season, the CPBL consists of six organizations, all of which have teams in the main league and farm league.
Baseball was popularized in Cuba by Nemesio Guillot, who founded the first major baseball club in the country. It became the most played sport in the country in the 1870s, before the period of American intervention.
The Korea Baseball Organization is the governing body for the professional leagues of baseball in South Korea. The KBO was founded in 1981 and has governed two leagues: the KBO League and KBO Futures League (Korean: KBO 퓨처스리그 since 1982. It is one of two major baseball governing bodies; the other is the Korea Baseball Association, which is the governing body for amateur baseball competitions.
The 2013 Nippon Professional Baseball season is the 64th season since the NPB was reorganized in 1950.
The 2014 Nippon Professional Baseball season is the 65th season since the NPB was reorganized in 1950.
Minor League Baseball (MiLB) is a professional baseball organization below Major League Baseball (MLB), including teams affiliated with MLB clubs.
The 2019 Nippon Professional Baseball season began on March 29. It was the 70th season since Nippon Professional Baseball (NPB) was reorganized in 1950. There are 12 teams NPB, split evenly between the Central League and Pacific League. The 2019 NPB season was 143 games long; teams in each league played 125 games against each other and 18 interleague games. The regular season was scheduled to end on September 24 except for any make-up games scheduled after it; the regular season eventually concluded on September 30. The top three teams in each league proceed to the Climax Series, NPB's postseason system.
The 2021 Nippon Professional Baseball season was the 72nd season of professional baseball in Japan since Nippon Professional Baseball (NPB) was reorganized in 1950. There were 12 NPB teams, split evenly between the Central League and Pacific League.
