The “save” was created by Chicago baseball writer Jerome Holtzman in the 1960’s and accepted as an official statistic by the Official Rules Committee of Major League Baseball in 1969. From 1969-72, a save was credited to a pitcher who finished a game his team won. From 1973-74, a save was credited to a pitcher who finished a game his team won with the tying or winning run on base or at bat. Since 1975 a pitcher has been credited with a save when he meets all three of the following conditions:
((1) He is the finishing pitcher in a game won by his club; (2) He is not the winning pitcher; (3) He qualifies under one of the following conditions: (a) He enters the game with a lead of no more than three runs and pitches for at least one inning; (b) He enters the game with the potential tying run either on base, or at bat, or on deck; (c) He pitches effectively for at least three innings. No more than one save may be credited in each game.