Professional Baseball
Overview
Professional baseball is a sport in which players who make baseball their profession belong to clubs, form leagues, and compete. Professional baseball leagues operate in many countries around the world, enjoying particular popularity in the United States, Japan, South Korea, Taiwan, and others. Professional baseball proceeds with each club playing games during the regular season, and the champion is determined through the postseason based on final rankings.
Main Content
History
The origins of professional baseball trace back to 19th-century America. The Cincinnati Red Stockings in 1869 were recorded as the first professional baseball team, and the establishment of the National League in 1876 opened the era of full-fledged professional baseball. Subsequently, the American League was founded in 1901, and the first World Series was held in 1903. In Japan, the Japanese Professional Baseball League was established in 1936, and in South Korea, the Korea Professional Baseball League (KBO) launched in 1982.
League Structure
Professional baseball leagues generally consist of a regular season and a postseason. During the regular season, each team plays a set number of games, and rankings are determined by winning percentage. The postseason involves the top teams from the regular season competing in a tournament format to decide the champion. For example, Major League Baseball (MLB) is divided into the American League and the National League, with the champions of each league facing off in the World Series. The KBO League operates as a single league, with teams ranked 1st through 5th in the regular season advancing to the postseason.
Main Rules
Professional baseball is fundamentally played by two teams of nine players each, alternating between offense and defense over nine innings. The pitcher throws the ball against the batter, and the batter hits the ball and scores by running around the bases and reaching home plate. There are calls such as strike, ball, out, and safe, and various tactics like home runs, stolen bases, and sacrifice hits are used. Professional baseball centers particularly on the duel between pitcher and batter, with factors such as pitch velocity, pitch types, and batting technique playing important roles.
Major Leagues
- Major League Baseball (MLB): The world's highest-level professional baseball league, consisting of 30 teams from the United States and Canada. Notable clubs include the New York Yankees, Boston Red Sox, and Los Angeles Dodgers.
- Nippon Professional Baseball (NPB): Divided into the Central League and the Pacific League, with popular teams such as the Yomiuri Giants and Hanshin Tigers.
- KBO League: Operated with 10 clubs in South Korea, with representative teams including the Doosan Bears, KIA Tigers, and LG Twins.
- Chinese Professional Baseball League (CPBL): Operated with 4 clubs in Taiwan, including the Lamigo Monkeys and Wei Chuan Dragons.
Notable Players
Professional baseball history features many legendary players. Representative figures include Babe Ruth, Hank Aaron, and Barry Bonds from the United States; Sadaharu Oh and Hideo Nomo from Japan; and Sun Dong-yeol, Lee Seung-yuop, and Ryu Hyun-jin from South Korea. They have left outstanding records in categories such as home runs, batting average, and earned run average.
Economic Impact
Professional baseball generates enormous economic value. MLB's annual revenue reaches approximately $10 billion, and the KBO League is estimated to produce an economic effect of over 1 trillion won. Clubs generate revenue through ticket sales, broadcasting rights, advertising, and merchandising. Additionally, professional baseball contributes to regional economic revitalization and job creation.
Latest Trends
As of 2024-2025, professional baseball is undergoing several changes. MLB has implemented rule changes to speed up the game and boost offense, such as introducing a pitch clock, enlarging base sizes, and restricting shifts. The KBO League also introduced the ABS (Automatic Ball-Strike System) in 2024 to enhance the accuracy of strike zone calls. Furthermore, with the advancement of data analysis and technology, sabermetrics has become increasingly important, and clubs are utilizing advanced statistics for player evaluation and strategy formulation. Internationally, the rising popularity of the World Baseball Classic (WBC) is accelerating the globalization of baseball. Meanwhile, in Japan, the activity of superstars like Shohei Ohtani is further increasing interest in professional baseball.
Related Topics
- [[Major League Baseball]]
- [[KBO League]]
- [[Nippon Professional Baseball]]
- [[Baseball rules]]
- [[Sabermetrics]]
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