Dan Quisenberry, Bruce Sutter, Firpo Marberry, and Ed Walsh are the only pitchers to lead the league in saves five times (though Marberry and Walsh did so before 1969).
Several highly accomplished relief pitchers, including Dan Quisenberry, Bruce Sutter, Firpo Marberry, and Ed Walsh, have successfully led their respective leagues in saves on multiple occasions, with Marberry and Walsh achieving this distinction prior to 1969.