Yearly Averaged Pitching Handedness Factors
Year LG Right Left
1960 NL 0.990 1.020
1961 NL 0.974 1.057
1962 NL 0.971 1.067
1963 NL 0.979 1.049
1964 NL 0.997 1.008
1965 NL 1.012 0.976
1966 NL 1.002 0.997
1967 NL 0.982 1.045
1968 NL 0.970 1.077
1969 NL 0.980 1.056
1970 NL 0.994 1.018
1971 NL 0.989 1.026
1972 NL 0.987 1.033
1973 NL 0.993 1.018
1974 NL 0.981 1.042
1975 NL 0.975 1.054
1976 NL 0.989 1.023
1977 NL 0.982 1.040
1978 NL 0.962 1.083
1979 NL 0.963 1.088
1980 NL 0.977 1.059
1981 NL 0.989 1.029
1982 NL 0.987 1.035
1983 NL 0.982 1.048
1984 NL 0.982 1.044
1985 NL 0.974 1.055
1986 NL 0.971 1.059
1987 NL 0.980 1.041
1988 NL 0.965 1.074
1989 NL 0.943 1.112
1990 NL 0.948 1.096
1991 NL 0.964 1.064
1992 NL 0.980 1.039
1993 NL 0.994 1.012
1994 NL 1.000 1.001
1995 NL 0.987 1.040
1996 NL 0.979 1.068
1997 NL 0.979 1.067
1998 NL 0.985 1.044
1999 NL 0.998 1.008
2000 NL 0.997 1.011
2001 NL 0.991 1.029
2002 NL 0.986 1.043
2003 NL 0.984 1.049
2004 NL 0.988 1.035
Year LG Right Left
1960 AL 0.979 1.068
1961 AL 0.965 1.105
1962 AL 0.955 1.128
1963 AL 0.972 1.074
1964 AL 0.976 1.054
1965 AL 0.967 1.075
1966 AL 0.974 1.060
1967 AL 0.972 1.066
1968 AL 0.968 1.076
1969 AL 0.975 1.055
1970 AL 0.976 1.047
1971 AL 0.965 1.070
1972 AL 0.956 1.089
1973 AL 0.968 1.064
1974 AL 0.989 1.021
1975 AL 0.994 1.013
1976 AL 0.981 1.043
1977 AL 0.975 1.056
1978 AL 0.979 1.043
1979 AL 0.978 1.045
1980 AL 0.978 1.044
1981 AL 0.980 1.040
1982 AL 0.971 1.057
1983 AL 0.964 1.072
1984 AL 0.968 1.067
1985 AL 0.982 1.038
1986 AL 0.990 1.021
1987 AL 0.987 1.028
1988 AL 0.984 1.035
1989 AL 0.977 1.051
1990 AL 0.976 1.054
1991 AL 0.987 1.030
1992 AL 0.988 1.029
1993 AL 0.978 1.054
1994 AL 0.982 1.045
1995 AL 0.981 1.047
1996 AL 0.970 1.074
1997 AL 0.971 1.075
1998 AL 0.968 1.094
1999 AL 0.958 1.133
2000 AL 0.960 1.129
2001 AL 0.971 1.088
2002 AL 0.980 1.056
2003 AL 0.978 1.056
2004 AL 0.961 1.091