Progressive Walks per 9IP
Leaderboard
 
This table is a snapshot of the career, single-season, active, and yearly leaders at the end of each season.
* - Indicates Hall of Fame
Bold - Indicates active player
Year    Career BB9    Single-Season BB9    Active BB9    Yearly BB9 
1973      Henry Mitcher 0.95      Henry Mitcher 0.95 
1974      Henry Mitcher 0.60      Henry Mitcher 0.60 
1975      Henry Mitcher 0.60      Larry Gorton 0.99 
1976    Steve Nebraska * 1.40    Henry Mitcher 0.60    Steve Nebraska * 1.40    Jamaal Jumboni 0.62 
1977    Jamaal Jumboni 0.83    Henry Mitcher 0.60    Jamaal Jumboni 0.83    Henry Mitcher 0.68 
1978    Jamaal Jumboni 0.89    Henry Mitcher 0.60    Jamaal Jumboni 0.89    Chuck Delong 0.73 
1979    Jamaal Jumboni 1.02    Henry Mitcher 0.60    Jamaal Jumboni 1.02    Juan Verde 0.81 
1980    Jamaal Jumboni 1.11    Henry Mitcher 0.60    Jamaal Jumboni 1.11    Bernie Due 0.89 
1981    Jamaal Jumboni 1.16    Henry Mitcher 0.60    Jamaal Jumboni 1.16    Ronnie Lee 0.65 
1982    Jamaal Jumboni 1.18    Henry Mitcher 0.60    Jamaal Jumboni 1.18    Eric Beckmeyer 0.67 
1983    Mark Fidrych 1.08    Henry Mitcher 0.60    Mark Fidrych 1.08    Mark Fidrych 0.68 
1984    Mark Fidrych 1.02    Henry Mitcher 0.60    Mark Fidrych 1.02    Phil Longwell 0.72 
1985    Mark Fidrych 0.96    Mark Fidrych 0.60    Mark Fidrych 0.96    Mark Fidrych 0.60 
1986    Mark Fidrych 0.97    Mark Fidrych 0.60    Mark Fidrych 0.97    John Ross Riles, Jr. 0.78 
1987    Mark Fidrych 1.06    Mark Fidrych 0.60    Mark Fidrych 1.06    Jerry Syed * 0.60 
1988    Phil Longwell 1.01    Mark Fidrych 0.54    Phil Longwell 1.01    Mark Fidrych 0.54 
1989    Mark Fidrych 1.05    Mark Fidrych 0.54    Mark Fidrych 1.05    Guy Corngood 0.58 
1990    Dennis Eckersley 1.05    Mark Fidrych 0.54    Dennis Eckersley 1.05    David Chappel 0.76 
1991    Dennis Eckersley 1.04    Mark Fidrych 0.54    Dennis Eckersley 1.04    David Chappel 0.64 
1992    Dennis Eckersley 1.08    Al Nipper 0.52    Dennis Eckersley 1.08    Al Nipper 0.52 
1993    David Chappel 0.92    Al Nipper 0.52    David Chappel 0.92    Al Nipper 0.71 
1994    Guy Corngood 1.07    Al Nipper 0.52    Guy Corngood 1.07    Jim Cramer 0.58