“The rating places a premium on strongarm stuff, it is true. It does not give due credit to finesse pitchers like Carl Hubbell and Dizzy Dean, who are inclined to let up and pace themselves whenever they have an easy game.” Tommy Holmes, “Mungo Toughest in League to Hit, Holding Enemy Batters to .229 Mark,”, Brooklyn Eage, December 31, 1937, p14
No earliest use given in 2009 Dickson Baseball Dictionary
