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,
Little League Baseball on a 46/60 field and are non-competitive. Approved at the 2014 Little League International Congress the Senior League Challenger Division launched in 2015. This division is for participants ages 15 and above (no maximum age). Games are played on a 60/90 field and are non-competitive. Leagues may request permission to play games on a smaller field as well. As of 2016, nearly 1,000 Little Leagues in 10 countries around the world offered the Challenger Program providing an opportunity for more than 31,000 individuals with physical or intellectual challenges to participate in the Little League program. Little League Baseball has several