All-American Girls Professional Baseball League rules of play progressively extending the length of the base paths and pitching distance, while decreasing the size of the ball until the final year of play in 1954. For the first five years the circuit used a fastpitch underhand motion, shifted to sidearm in the 1947 season, and overhand pitching began in 1948. All-American Girls Professional Baseball League rules of play The All-American Girls Professional Baseball League was a circuit that began to operate in 1943. Since the only organized ball for women in the United States was softball, the league officials created a hybrid game which included features of both fast-pitch
Eri Yoshida On December 15, 2009 the Arizona Winter League announced that they had reached an agreement to allow Yoshida to play in their thirty-five game season. The league served to showcase players who had been overlooked by major league teams in the draft by giving them a chance to play in front of professional scouts. On February 12, 2010, Yoshida got her first win in Arizona Winter League play, throwing four shut-out innings in a 5–0 win for her team, the Yuma Scorpions, versus Team Canada of the Arizona Winter League. On February 28, 2010, she was offered a contract to