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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | K9 | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Randy Johnson# | 12.2 | 1989-1995 | |
| 2 | Ed Correa# | 11.3 | 1985-1995 | |
| 3 | John Smoltz# | 10.0 | 1988-1995 | |
| 4 | Curt Schilling# | 9.9 | 1991-1995 | |
| 5 | Dwight Gooden# | 9.8 | 1984-1995 | |
| 6 | Nolan Ryan | 9.7 | 1976-1987 | |
| 7 | Mark Clear# | 9.4 | 1979-1995 | |
| 8 | Floyd Youmans# | 9.2 | 1985-1995 | |
| 8 | Wilson Alvarez# | 9.2 | 1990-1995 | |
| 10 | Juan Nieves# | 9.1 | 1986-1995 | |
| 11 | Tom Gordon# | 9.0 | 1988-1995 | |
| 11 | Al Leiter# | 9.0 | 1988-1995 | |
| 13 | Sid Fernandez | 8.9 | 1983-1988 | |
| 14 | Len Barker | 8.8 | 1976-1991 | |
| 15 | Eric Plunk# | 8.7 | 1986-1995 | |
| 15 | Roger Clemens# | 8.7 | 1984-1995 | |
| 17 | Bruce Hurst | 8.6 | 1982-1994 | |
| 17 | David West# | 8.6 | 1989-1995 | |
| 19 | Greg Maddux# | 8.4 | 1986-1995 | |
| 19 | Kevin Appier# | 8.4 | 1989-1995 | |
| 19 | Kevin Brown# | 8.4 | 1986-1995 | |
| 22 | Alex Fernandez# | 8.3 | 1990-1995 | |
| 23 | Mark Langston# | 8.2 | 1984-1995 | |
| 23 | Jose Rijo# | 8.2 | 1984-1995 | |
| 23 | Andy Benes# | 8.2 | 1989-1995 | |
| 23 | Teddy Higuera# | 8.2 | 1985-1995 | |
| 23 | Pete Harnisch# | 8.2 | 1989-1995 | |
| 28 | Erik Hanson# | 8.1 | 1988-1995 | |
| 29 | Scott Garrelts# | 8.0 | 1982-1995 | |
| 29 | Bob Sebra# | 8.0 | 1985-1995 | |
| 31 | Bob James | 7.9 | 1978-1993 | |
| 31 | Melido Perez# | 7.9 | 1987-1994 | |
| 33 | Jose DeLeon# | 7.7 | 1983-1995 | |
| 33 | Lee Smith# | 7.7 | 1980-1995 | |
| 35 | Frank Castillo# | 7.6 | 1992-1995 | |
| 35 | Britt Burns | 7.6 | 1979-1991 | |
| 35 | Chuck Finley# | 7.6 | 1986-1994 | |
| 38 | Mike Mussina# | 7.5 | 1991-1995 | |
| 38 | Fernando Valenzuela | 7.5 | 1980-1993 | |
| 38 | Frank DiPino# | 7.5 | 1982-1995 | |
| 41 | David Cone# | 7.4 | 1987-1995 | |
| 41 | Ramon J. Martinez# | 7.4 | 1988-1995 | |
| 41 | Chris Nabholz# | 7.4 | 1990-1995 | |
| 44 | Scott Bankhead# | 7.3 | 1986-1995 | |
| 44 | Bob Kipper | 7.3 | 1985-1994 | |
| 44 | Terry Forster | 7.3 | 1976-1992 | |
| 47 | Bruce Berenyi | 7.2 | 1980-1993 | |
| 47 | Steve Avery# | 7.2 | 1990-1995 | |
| 49 | Mark Guthrie# | 7.1 | 1989-1995 | |
| 49 | David Palmer# | 7.1 | 1978-1994 | |
| 49 | Frank Tanana | 7.1 | 1976-1988 | |
| 49 | Dennis Eckersley | 7.1 | 1976-1993 | |
| 49 | Ben McDonald# | 7.1 | 1989-1995 | |
| 54 | Rick Reed# | 7.0 | 1988-1995 | |
| 54 | Dennis Rasmussen | 7.0 | 1983-1993 | |
| 56 | Dave Righetti | 6.9 | 1980-1992 | |
| 56 | Frank Viola# | 6.9 | 1982-1994 | |
| 56 | David Wells# | 6.9 | 1987-1995 | |
| 56 | John Smiley# | 6.9 | 1986-1995 | |
| 60 | Kirk McCaskill# | 6.8 | 1985-1994 | |
| 60 | Jack McDowell# | 6.8 | 1987-1995 | |
| 60 | John Montefusco* | 6.8 | 1976-1985 | |
| 60 | John Burkett# | 6.8 | 1987-1995 | |
| 60 | Scott Sanderson | 6.8 | 1978-1992 | |
| 60 | Kelly Downs# | 6.8 | 1986-1995 | |
| 66 | Jim Abbott# | 6.7 | 1989-1995 | |
| 66 | Dan Warthen | 6.7 | 1976-1992 | |
| 66 | Pat Combs# | 6.7 | 1989-1995 | |
| 66 | Goose Gossage | 6.7 | 1976-1990 | |
| 66 | Steve Carlton | 6.7 | 1976-1985 | |
| 66 | Joe Hesketh | 6.7 | 1984-1993 | |
| 72 | Danny Jackson# | 6.6 | 1983-1995 | |
| 72 | Chris Hammond# | 6.6 | 1990-1995 | |
| 72 | Jamie Moyer# | 6.6 | 1987-1995 | |
| 72 | Bret Saberhagen# | 6.6 | 1984-1995 | |
| 72 | Ron Robinson# | 6.6 | 1984-1995 | |
| 77 | Mike Bielecki | 6.5 | 1985-1994 | |
| 77 | Chris Bosio# | 6.5 | 1986-1994 | |
| 77 | Kevin Gross# | 6.5 | 1983-1994 | |
| 77 | Mike Scott | 6.5 | 1979-1992 | |
| 77 | Pete J. Smith# | 6.5 | 1988-1993 | |
| 77 | Mike Mason | 6.5 | 1983-1991 | |
| 77 | Rick Aguilera# | 6.5 | 1985-1994 | |
| 77 | Jim Deshaies | 6.5 | 1984-1992 | |
| 85 | Steve Howe# | 6.4 | 1980-1995 | |
| 85 | Marvin Freeman# | 6.4 | 1986-1994 | |
| 85 | Kevin Tapani# | 6.4 | 1989-1994 | |
| 85 | Bruce Ruffin# | 6.4 | 1986-1995 | |
| 85 | Pascual Perez | 6.4 | 1980-1993 | |
| 85 | Mark Portugal# | 6.4 | 1985-1995 | |
| 85 | Matt Young# | 6.4 | 1983-1995 | |
| 85 | Bryn Smith# | 6.4 | 1981-1995 | |
| 85 | Jeff Sellers# | 6.4 | 1986-1995 | |
| 94 | Jimmy Key# | 6.3 | 1984-1995 | |
| 94 | Pete Falcone | 6.3 | 1976-1986 | |
| 94 | Orel Hershiser# | 6.3 | 1983-1995 | |
| 94 | Eric King# | 6.3 | 1987-1995 | |
| 94 | Tom Seaver | 6.3 | 1976-1986 | |
| 94 | Kenny Rogers# | 6.3 | 1989-1995 | |
| 94 | Jack Morris | 6.3 | 1977-1990 |
