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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Postseason Leaderboard |
|---|---|---|---|---|
| 1 | Mike Harkey# | 0.73 | 1988-1994 | |
| 2 | Dwight Gooden# | 0.81 | 1984-1994 | |
| 3 | Rheal Cormier# | 0.83 | 1991-1994 | |
| 4 | Larry McWilliams | 0.89 | 1978-1989 | |
| 4 | Randy Johnson# | 0.89 | 1989-1994 | |
| 6 | John Smoltz# | 0.93 | 1988-1994 | |
| 7 | Greg Maddux# | 0.95 | 1986-1994 | |
| 8 | Rick Rhoden | 0.99 | 1976-1992 | |
| 8 | Doug Jones# | 0.99 | 1982-1994 | |
| 10 | Jimmy Key# | 1.00 | 1984-1994 | |
| 10 | Greg Mathews# | 1.00 | 1986-1993 | |
| 12 | Bert Blyleven | 1.01 | 1976-1985 | |
| 13 | Pascual Perez | 1.03 | 1980-1993 | |
| 13 | Greg Swindell | 1.03 | 1986-1991 | |
| 13 | Mark Guthrie# | 1.03 | 1989-1994 | |
| 13 | Teddy Higuera# | 1.03 | 1985-1994 | |
| 13 | Randy Myers# | 1.03 | 1985-1994 | |
| 18 | Alex Fernandez# | 1.04 | 1990-1994 | |
| 18 | Al Holland | 1.04 | 1977-1987 | |
| 20 | Wayne Garland | 1.05 | 1976-1987 | |
| 20 | Steve Avery# | 1.05 | 1990-1994 | |
| 20 | Bryn Smith# | 1.05 | 1981-1994 | |
| 23 | Kevin Tapani# | 1.06 | 1989-1994 | |
| 23 | Andy Rincon# | 1.06 | 1980-1994 | |
| 25 | Dennis Eckersley | 1.08 | 1976-1993 | |
| 26 | Mike Bruhert | 1.09 | 1978-1986 | |
| 26 | Steve Carlton | 1.09 | 1976-1985 | |
| 26 | Joe Johnson# | 1.09 | 1985-1994 | |
| 26 | Tim Belcher# | 1.09 | 1987-1994 | |
| 26 | Ken Dayley | 1.09 | 1984-1992 | |
| 31 | John Candelaria | 1.10 | 1976-1990 | |
| 32 | Catfish Hunter | 1.11 | 1976-1984 | |
| 32 | Jon Matlack* | 1.11 | 1976-1990 | |
| 34 | Tom Candiotti | 1.12 | 1984-1992 | |
| 34 | Reggie Cleveland | 1.12 | 1976-1982 | |
| 36 | Danny Jackson# | 1.14 | 1983-1994 | |
| 36 | Joe Magrane# | 1.14 | 1987-1994 | |
| 38 | Matt Young# | 1.15 | 1983-1994 | |
| 38 | Len Barker | 1.15 | 1976-1991 | |
| 38 | Steve Howe# | 1.15 | 1980-1994 | |
| 41 | Bruce Hurst# | 1.16 | 1982-1994 | |
| 41 | Roger Clemens# | 1.16 | 1984-1994 | |
| 43 | Steve Rogers | 1.17 | 1976-1988 | |
| 43 | Tom Seaver | 1.17 | 1976-1986 | |
| 43 | Lee Smith# | 1.17 | 1980-1994 | |
| 43 | Pete Falcone | 1.17 | 1976-1986 | |
| 47 | Kelly Downs# | 1.18 | 1986-1994 | |
| 47 | Mickey Lolich | 1.18 | 1976-1979 | |
| 47 | Jim Clancy | 1.18 | 1977-1991 | |
| 47 | Kevin Brown# | 1.18 | 1986-1994 | |
| 47 | Mike Scott | 1.18 | 1979-1992 | |
| 52 | Doc Medich | 1.19 | 1976-1984 | |
| 52 | Wilson Alvarez# | 1.19 | 1990-1994 | |
| 52 | Atlee Hammaker | 1.19 | 1981-1991 | |
| 52 | Charlie Leibrandt | 1.19 | 1979-1990 | |
| 56 | Silvio Martinez | 1.20 | 1977-1993 | |
| 56 | Joe Hesketh# | 1.20 | 1984-1993 | |
| 56 | Dale Murray | 1.20 | 1976-1992 | |
| 59 | Vida Blue* | 1.21 | 1976-1990 | |
| 60 | Rick Reed# | 1.22 | 1988-1994 | |
| 60 | Todd Van Poppel# | 1.22 | 1991-1994 | |
| 60 | Rick Jones | 1.22 | 1976-1988 | |
| 60 | Scott Brown# | 1.22 | 1981-1994 | |
| 64 | Bill Gullickson# | 1.23 | 1979-1994 | |
| 64 | Gary Nolan | 1.23 | 1976-1984 | |
| 64 | J.R. Richard | 1.23 | 1976-1988 | |
| 64 | Jeff D. Robinson# | 1.23 | 1984-1994 | |
| 64 | Floyd Youmans# | 1.23 | 1985-1994 | |
| 64 | Dan Petry | 1.23 | 1979-1987 | |
| 70 | Bill Caudill# | 1.24 | 1979-1994 | |
| 70 | Jerry Reuss | 1.24 | 1976-1986 | |
| 70 | Nino Espinosa | 1.24 | 1976-1983 | |
| 70 | Kevin Appier# | 1.24 | 1989-1994 | |
| 70 | Rick Reuschel | 1.24 | 1976-1983 | |
| 75 | Erik Hanson# | 1.25 | 1988-1994 | |
| 75 | Bill C. Swift# | 1.25 | 1985-1994 | |
| 75 | Bob Stanley | 1.25 | 1977-1989 | |
| 78 | Jose DeLeon# | 1.26 | 1983-1994 | |
| 78 | Bob Sebra# | 1.26 | 1985-1994 | |
| 78 | Ken Howell# | 1.26 | 1984-1994 | |
| 81 | Mike Smithson | 1.27 | 1982-1990 | |
| 82 | Frank Viola# | 1.28 | 1982-1994 | |
| 82 | Dan Plesac# | 1.28 | 1986-1994 | |
| 82 | Denny Neagle# | 1.28 | 1991-1994 | |
| 82 | Ken Brett | 1.28 | 1976-1987 | |
| 86 | John Tudor | 1.30 | 1979-1992 | |
| 86 | Ed Correa# | 1.30 | 1985-1994 | |
| 86 | Bob James | 1.30 | 1978-1993 | |
| 86 | Zane Smith# | 1.30 | 1984-1994 | |
| 86 | Kevin Gross# | 1.30 | 1983-1994 | |
| 86 | Randy Tomlin# | 1.30 | 1990-1994 | |
| 86 | Bill Laskey | 1.30 | 1982-1989 | |
| 93 | Bruce Kison | 1.31 | 1976-1984 | |
| 94 | Jerry Koosman | 1.32 | 1976-1980 | |
| 94 | Frank Tanana | 1.32 | 1976-1988 | |
| 96 | Scott Garrelts# | 1.33 | 1982-1994 | |
| 96 | Dennis Lamp | 1.33 | 1977-1988 | |
| 96 | Ben McDonald# | 1.33 | 1989-1994 | |
| 96 | John Fulgham# | 1.33 | 1979-1994 | |
| 100 | Steve Renko | 1.34 | 1976-1983 |
