The

All-American Girls Professional Baseball League 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 Uni ...

was a circuit that began to operate in

1943 Events Below, the events of World War II have the "WWII" prefix. January * January 1 – WWII: The Soviet Union announces that 22 German divisions have been encircled at Stalingrad, with 175,000 killed and 137,650 captured. * January 4 – ...

. Since the only organized ball for women in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

was

softball Softball is a game similar to baseball played with a larger ball on a smaller field. Softball is played competitively at club levels, the college level, and the professional level. The game was first created in 1887 in Chicago by George Hanc ...

, the league officials created a hybrid game which included features of both fast-pitch softball and

baseball 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 tea ...

. Compared to softball, the crucial differences were that nine (not ten) players were used, and runners could lead off, slide and steal bases. In its twelve years of history the All-American Girls Professional Baseball League evolved through many stages. These differences varied from the beginning of the league, progressively extending the length of the base paths and pitching distance, while decreasing the size of the

ball A ball is a round object (usually spherical, but can sometimes be ovoid) with several uses. It is used in ball games, where the play of the game follows the state of the ball as it is hit, kicked or thrown by players. Balls can also be used f ...

until the final year of play in

1954 Events January * January 1 – The Soviet Union ceases to demand war reparations from West Germany. * January 3 – The Italian broadcaster RAI officially begins transmitting. * January 7 – Georgetown-IBM experiment: The fir ...

. For the first five years the circuit used a fastpitch underhand motion, shifted to sidearm in the

1947 It was the first year of the Cold War, which would last until 1991, ending with the dissolution of the Soviet Union. Events January * January–February – Winter of 1946–47 in the United Kingdom: The worst snowfall in the country in ...

season, and overhand pitching began in

1948 Events January * January 1 ** The General Agreement on Tariffs and Trade (GATT) is inaugurated. ** The Constitution of New Jersey (later subject to amendment) goes into effect. ** The railways of Britain are nationalized, to form British ...

.All-American Girls Professional Baseball League – Rules of Play
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Rules of play

Sources

{{DEFAULTSORT:All-American Girls Professional Baseball League rules Baseball rules

Rules Rule or ruling may refer to: Education * Royal University of Law and Economics (RULE), a university in Cambodia Human activity * The exercise of political or personal control by someone with authority or power * Business rule, a rule perta ...