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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 
1930      Ted Lyons 0.88      Ted Lyons 0.88 
1931      Red Shea 0.86      Red Shea 0.86 
1932    Ted Lyons 0.87    Ted Lyons 0.80    Ted Lyons 0.87    Ted Lyons 0.80 
1933    Ted Lyons 1.02    Ted Lyons 0.80    Ted Lyons 1.02    Garland Buckeye 1.10 
1934    Ted Lyons 1.02    Ted Lyons 0.80    Ted Lyons 1.02    Ted Lyons 1.02 
1935    Ted Lyons 1.05    Ted Lyons 0.80    Ted Lyons 1.05    Ted Lyons 1.19 
1936    Ted Lyons 1.14    Ted Lyons 0.80    Ted Lyons 1.14    Dutch Henry 1.29 
1937    Ted Lyons 1.18    Ted Lyons 0.80    Ted Lyons 1.18    Red Peery 1.37 
1938    Lum Davenport 1.22    Ted Lyons 0.80    Ted Lyons 1.28    Harry Eisenstat 1.53 
1939    Lum Davenport 1.22    Ted Lyons 0.80    Ray Prim 1.58    George Blaeholder 1.10 
1940    Lum Davenport 1.22    Ted Lyons 0.80    Ray Prim 1.57    Harry Eisenstat 1.35 
1941    Red Peery 1.16    Ted Lyons 0.80    Red Peery 1.16    Red Peery 1.22 
1942    Red Peery 1.21    Ted Lyons 0.80    Red Peery 1.21    Tiny Bonham 1.23 
1943    Red Peery 1.21    Ted Lyons 0.80    Harry Eisenstat 1.64    Marius Russo 1.74 
1944    Red Peery 1.21    Ted Lyons 0.80    Ray Prim 1.67    Preacher Roe 1.48 
1945    Red Peery 1.21    Ted Lyons 0.80    Harry Eisenstat 1.73    Warren Spahn * 1.65 
1946    Red Peery 1.21    Ted Lyons 0.80    Fred Hutchinson 1.63    Joe Haynes 1.83 
1947    Red Peery 1.21    Ted Lyons 0.80    Fred Hutchinson 1.64    Fred Hutchinson 1.68 
1948    Red Peery 1.21    Ted Lyons 0.80    Fred Hutchinson 1.65    Fred Hutchinson 1.70 
1949    Red Peery 1.21    Ted Lyons 0.80    Fred Hutchinson 1.64    Robin Roberts 1.42 
1950    Red Peery 1.21    Ted Lyons 0.80    Fred Hutchinson 1.65    Robin Roberts 1.13 
1951    Red Peery 1.21    Ted Lyons 0.80    Robin Roberts 1.47    Robin Roberts 0.98 
1952    Red Peery 1.21    Ted Lyons 0.80    Robin Roberts 1.40    Chuck Stobbs * 0.90 
1953    Red Peery 1.21    Chuck Stobbs * 0.70    Robin Roberts 1.40    Chuck Stobbs * 0.70 
1954    Red Peery 1.21    Chuck Stobbs * 0.70    Robin Roberts 1.45    Chuck Stobbs * 1.05 
1955    Red Peery 1.21    Chuck Stobbs * 0.70    Robin Roberts 1.53    Chuck Stobbs * 0.95 
1956    Red Peery 1.21    Chuck Stobbs * 0.70    Chuck Stobbs * 1.59    Dick Hall 1.23 
1957    Red Peery 1.21    Chuck Stobbs * 0.70    Chuck Stobbs * 1.51    Chuck Stobbs * 0.85 
1958    Red Peery 1.21    Chuck Stobbs * 0.70    Chuck Stobbs * 1.45    Chuck Stobbs * 0.99 
1959    Red Peery 1.21    Chuck Stobbs * 0.70    Chuck Stobbs * 1.40    Chuck Stobbs * 0.73 
1960    Red Peery 1.21    Chuck Stobbs * 0.70    Chuck Stobbs * 1.36    Chuck Stobbs * 0.98 
1961    Dick Hall 1.18    Chuck Stobbs * 0.70    Dick Hall 1.18    Chuck Stobbs * 0.84 
1962    Dick Hall 1.16    Chuck Stobbs * 0.70    Dick Hall 1.16    Leo Kiely 0.90 
1963    Dick Hall 1.14    Chuck Stobbs * 0.70    Dick Hall 1.14    Chuck Stobbs * 0.73 
1964    Dick Hall 1.05    Dick Hall 0.46    Dick Hall 1.05    Dick Hall 0.46 
1965    Dick Hall 1.07    Dick Hall 0.46    Dick Hall 1.07    Juan Marichal * 0.83 
1966    Juan Marichal * 1.04    Dick Hall 0.46    Juan Marichal * 1.04    Juan Marichal * 0.79 
1967    Juan Marichal * 0.98    Dick Hall 0.46    Juan Marichal * 0.98    Juan Marichal * 0.71 
1968    Juan Marichal * 0.97    Dick Hall 0.46    Juan Marichal * 0.97    John Gelnar 0.78 
1969    Juan Marichal * 0.96    Dick Hall 0.46    Juan Marichal * 0.96    Juan Marichal * 0.89 
1970    Juan Marichal * 0.94    Dick Hall 0.46    Juan Marichal * 0.94    Juan Marichal * 0.68 
1971    Juan Marichal * 0.93    Dick Hall 0.46    Juan Marichal * 0.93    Juan Marichal * 0.71 
1972    Juan Marichal * 0.93    Dick Hall 0.46    Juan Marichal * 0.93    Juan Marichal * 1.05 
1973    Juan Marichal * 0.93    Dick Hall 0.46    Juan Marichal * 0.93    Juan Marichal * 0.87 
1974    Juan Marichal * 0.93    Dick Hall 0.46    John Gelnar 1.14    Pedro Borbon 0.95 
1975    Juan Marichal * 0.93    Dick Hall 0.46    John Gelnar 1.16    Gary Nolan * 1.00 
1976    Juan Marichal * 0.93    Dick Hall 0.46    John Gelnar 1.21    Gary Nolan * 0.66 
1977    Juan Marichal * 0.93    Dick Hall 0.46    John Gelnar 1.21    Steve Kline 0.69 
1978    Juan Marichal * 0.93    Dick Hall 0.46    Gary Nolan * 1.20    Denny McLain 0.68 
1979    Juan Marichal * 0.93    Dick Hall 0.46    Gary Nolan * 1.17    Dick Baney 0.88 
1980    Juan Marichal * 0.93    Dick Hall 0.46    Gary Nolan * 1.15    Dave Rozema 0.71 
1981    Juan Marichal * 0.93    Dick Hall 0.46    Gary Nolan * 1.14    Don Demola 0.68 
1982    Juan Marichal * 0.93    Dick Hall 0.46    Fernando Arroyo 1.10    Dave Rozema 0.77 
1983    Juan Marichal * 0.93    Dick Hall 0.46    Fernando Arroyo 1.11    Gary Nolan * 0.76 
1984    Juan Marichal * 0.93    Dick Hall 0.46    Gary Nolan * 1.09    Don Demola 0.69 
1985    Juan Marichal * 0.93    Dick Hall 0.46    Gary Nolan * 1.05    Gary Nolan * 0.52 
1986    Juan Marichal * 0.93    Dick Hall 0.46    Gary Nolan * 1.06    Lary Sorensen 1.03 
1987    Juan Marichal * 0.93    Dick Hall 0.46    Gary Nolan * 1.10    Dennis Eckersley 1.01 
1988    Juan Marichal * 0.93    Dick Hall 0.46    Don Demola 1.23    Allan Anderson 0.98 
1989    Juan Marichal * 0.93    Dick Hall 0.46    Dave Rozema 1.14    La Marr Hoyt 0.72 
1990    Juan Marichal * 0.93    Dick Hall 0.46    Don Demola 1.25    Brian Fisher 0.89 
 
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