John Grodzicki was an American Major League Baseball pitcher. A native of Nanticoke, Pennsylvania, he pitched for the St. Louis Cardinals in 1941, 1946 and 1947. The right-hander stood 6 feet 1 inch a

In baseball statistics, earned run average is the average of earned runs allowed by a pitcher per nine innings pitched. It is determined by dividing the number of earned runs allowed by the number of