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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Pedro Martinez# | 0.704 | 1997 | |
| 2 | Pedro Martinez# | 0.708 | 1996 | |
| 3 | Pedro Martinez# | 0.733 | 1998 | |
| 4 | Pedro Martinez# | 0.779 | 1994 | |
| 5 | Dwight Gooden# | 0.784 | 1991 | |
| 6 | Pedro Martinez# | 0.803 | 1993 | |
| 7 | John Smoltz# | 0.812 | 1991 | |
| 8 | Randy Johnson# | 0.824 | 1991 | |
| 9 | Greg Maddux# | 0.842 | 1991 | |
| 10 | Greg Maddux# | 0.845 | 1993 | |
| 11 | Greg Maddux# | 0.850 | 1988 | |
| 12 | Dwight Gooden# | 0.861 | 1988 | |
| 13 | Greg Maddux# | 0.864 | 1990 | |
| 14 | Kevin Brown# | 0.885 | 1988 | |
| 15 | Kevin Brown# | 0.886 | 1991 | |
| 16 | Greg Maddux# | 0.889 | 1994 | |
| 17 | Pedro Martinez# | 0.896 | 1995 | |
| 18 | Greg Maddux# | 0.897 | 1995 | |
| 19 | Dennis Eckersley | 0.898 | 1982 | |
| 20 | Greg Maddux# | 0.901 | 1997 | |
| 21 | Kevin Brown# | 0.903 | 1998 | |
| 22 | Greg Maddux# | 0.905 | 1989 | |
| 23 | Tom Seaver | 0.909 | 1978 | |
| 24 | John Smoltz# | 0.915 | 1996 | |
| 25 | Kevin Brown# | 0.919 | 1994 | |
| 25 | Curt Schilling# | 0.919 | 1992 | |
| 27 | Dwight Gooden# | 0.924 | 1985 | |
| 28 | Randy Johnson# | 0.925 | 1989 | |
| 29 | John Smoltz# | 0.927 | 1992 | |
| 30 | Jon Matlack* | 0.932 | 1982 | |
| 30 | Greg Maddux# | 0.932 | 1998 | |
| 32 | Kevin Brown# | 0.933 | 1986 | |
| 33 | Randy Johnson# | 0.935 | 1993 | |
| 34 | Kevin Brown# | 0.936 | 1993 | |
| 35 | Kevin Brown# | 0.939 | 1997 | |
| 36 | Mike Mussina# | 0.943 | 1994 | |
| 37 | Takehiro Ishii# | 0.944 | 1995 | |
| 38 | Roger Clemens# | 0.948 | 1993 | |
| 39 | Denny Neagle# | 0.950 | 1995 | |
| 39 | Bill Gullickson | 0.950 | 1987 | |
| 41 | Mike Mussina# | 0.952 | 1996 | |
| 42 | Teddy Higuera# | 0.954 | 1990 | |
| 42 | Mike Mussina# | 0.954 | 1995 | |
| 44 | Jon Lieber# | 0.956 | 1996 | |
| 45 | Roger Clemens# | 0.959 | 1995 | |
| 46 | Brad Radke# | 0.960 | 1997 | |
| 47 | Andy Pettitte# | 0.963 | 1996 | |
| 48 | Randy Johnson# | 0.964 | 1994 | |
| 49 | Dwight Gooden# | 0.965 | 1984 | |
| 50 | Kevin Brown# | 0.967 | 1989 | |
| 51 | Scott Bankhead# | 0.968 | 1998 | |
| 52 | John Smiley# | 0.969 | 1989 | |
| 53 | Roger Clemens# | 0.970 | 1989 | |
| 54 | Al Leiter# | 0.971 | 1996 | |
| 55 | Greg Maddux# | 0.972 | 1992 | |
| 55 | Zane Smith# | 0.972 | 1987 | |
| 57 | Rheal Cormier# | 0.976 | 1993 | |
| 58 | Pedro Martinez# | 0.977 | 1992 | |
| 58 | Randy Johnson# | 0.977 | 1992 | |
| 58 | Ron Robinson# | 0.977 | 1997 | |
| 61 | Randy Johnson# | 0.979 | 1990 | |
| 61 | Greg Maddux# | 0.979 | 1996 | |
| 63 | Dwight Gooden# | 0.981 | 1987 | |
| 63 | Steve Avery# | 0.981 | 1998 | |
| 65 | Curt Schilling# | 0.983 | 1991 | |
| 66 | John Burkett# | 0.986 | 1998 | |
| 67 | Mike Scott | 0.987 | 1987 | |
| 67 | Matt Young# | 0.987 | 1988 | |
| 67 | Dennis Martinez | 0.987 | 1982 | |
| 70 | Dwight Gooden# | 0.988 | 1992 | |
| 71 | Ron Robinson# | 0.989 | 1987 | |
| 72 | Curt Schilling# | 0.992 | 1997 | |
| 73 | Atlee Hammaker | 0.994 | 1987 | |
| 74 | Pascual Perez | 0.995 | 1990 | |
| 75 | Ramiro Mendoza# | 0.996 | 1997 | |
| 76 | Jerry Koosman | 0.997 | 1976 | |
| 77 | Jon Matlack* | 0.999 | 1984 | |
| 78 | Zane Smith# | 1.000 | 1986 | |
| 79 | Erik Hanson# | 1.001 | 1992 | |
| 79 | Mark Guthrie# | 1.001 | 1997 | |
| 81 | Roger Clemens# | 1.002 | 1994 | |
| 82 | Curt Schilling# | 1.008 | 1994 | |
| 83 | Ismael Valdez# | 1.009 | 1995 | |
| 84 | Steve Carlton | 1.010 | 1978 | |
| 84 | Mike Scott | 1.010 | 1990 | |
| 86 | Kevin Appier# | 1.011 | 1993 | |
| 87 | Jon Matlack* | 1.012 | 1979 | |
| 88 | John Smoltz# | 1.014 | 1998 | |
| 88 | Dwight Gooden# | 1.014 | 1986 | |
| 88 | Pascual Perez | 1.014 | 1991 | |
| 91 | Joe Hesketh | 1.015 | 1987 | |
| 91 | Jose DeLeon# | 1.015 | 1988 | |
| 93 | Jon Lieber# | 1.016 | 1997 | |
| 93 | Curt Schilling# | 1.016 | 1995 | |
| 93 | Pascual Perez | 1.016 | 1989 | |
| 96 | Dwight Gooden# | 1.017 | 1994 | |
| 97 | Dwight Gooden# | 1.019 | 1990 | |
| 98 | John Burkett# | 1.020 | 1990 | |
| 98 | Dwight Gooden# | 1.020 | 1989 | |
| 98 | Omar Daal# | 1.020 | 1995 |
