All-American Girls Professional Baseball League plate, closer even than in regulation softball and much closer than the baseball distance of 60 feet, 6 inches. Pitchers threw underhand windmill, like in softball, and the distance between bases was 65 feet, five feet longer than in softball but 25 feet shorter than in baseball. Major similarities between the AAGPBL and baseball included nine player teams and the use of a pitcher's mound (softball pitchers throw from flat ground). By 1948 the ball had shrunk to 10 3/8 inches, overhand pitching was allowed, and the mound was moved back to 50 feet. Over the history of the league,
Baseball field the bases are 90 feet apart, the physical distance between each successive pair of base markers is closer to . The lines from home plate to first and third bases extend to the nearest fence, stand or other obstruction and are called the foul lines. The portion of the playing field between (and including) the foul lines is fair territory; the rest is "foul territory." The area within the square formed by the bases is officially called the infield, though colloquially this term also includes fair territory in the vicinity of the square; fair territory outside the infield is known