Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Fred Ames Hayner (1871-1929), was a Major League Baseball pitcher who played in one game, on August 19, 1890 with the Pittsburgh Alleghenys of the National League. He pitched four innings in relief and allowed nine runs, six of which were earned. Major League Baseball (MLB) is the highest level of professional baseball in the United States and Canada, consisting of teams that play in the National League and the American League. The two leagues merged in 2000 into a single MLB organization led by the Commissioner of Baseball after 100 years as separate legal entities.