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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WPCT | YEAR | Open Postseason Career Leaderboard |
|---|---|---|---|---|
| 1 | Jim Merritt | 1.000 | 1989 | |
| 1 | Jim Merritt | 1.000 | 1980 | |
| 1 | Jhoan Duran# | 1.000 | 1989 | |
| 1 | Jhoan Duran# | 1.000 | 1996 | |
| 1 | Albie Lopez | 1.000 | 1985 | |
| 1 | Ian Snell | 1.000 | 1981 | |
| 1 | Foster Edwards# | 1.000 | 1994 | |
| 1 | Mickey Lolich# | 1.000 | 1988 | |
| 1 | Omar Daal | 1.000 | 1987 | |
| 1 | Kevin Kobel | 1.000 | 1980 | |
| 1 | Kevin Kobel | 1.000 | 1981 | |
| 1 | Phil Niekro | 1.000 | 1985 | |
| 1 | Don Schwall | 1.000 | 1980 | |
| 1 | Paul Erickson# | 1.000 | 1999 | |
| 1 | John Candelaria# | 1.000 | 1988 | |
| 1 | Mike Trombley | 1.000 | 1981 | |
| 1 | Sam McDowell | 1.000 | 1993 | |
| 1 | Barry Zito | 1.000 | 1989 | |
| 1 | Barry Moore | 1.000 | 1988 | |
| 1 | John Axford# | 1.000 | 1995 | |
| 1 | Daisuke Matsuzaka | 1.000 | 1989 | |
| 1 | Doug Rau# | 1.000 | 1998 | |
| 1 | Joey Hamilton# | 1.000 | 1998 | |
| 1 | Earl Francis# | 1.000 | 1997 | |
| 1 | Mark Langston* | 1.000 | 1989 | |
| 1 | Doug Rau# | 1.000 | 1993 | |
| 1 | Mike Nagy# | 1.000 | 1994 | |
| 1 | Hal Newhouser | 1.000 | 1993 | |
| 1 | Tommy Milone# | 1.000 | 1999 | |
| 1 | Robbie Ray | 1.000 | 1983 | |
| 1 | Robbie Ray | 1.000 | 1984 | |
| 1 | Matt Guerrier | 1.000 | 1996 | |
| 1 | Robbie Ray | 1.000 | 1987 | |
| 1 | Kevin Ritz# | 1.000 | 1997 | |
| 1 | Robbie Ray | 1.000 | 1988 | |
| 1 | Mike Ryba# | 1.000 | 1997 | |
| 1 | Sonny Gray# | 1.000 | 1999 | |
| 1 | Sonny Gray# | 1.000 | 2000 | |
| 1 | Tommy Boggs# | 1.000 | 1998 | |
| 1 | Zeke Spruill | 1.000 | 1981 | |
| 1 | Vern Geishert | 1.000 | 1982 | |
| 1 | Kyle Lohse# | 1.000 | 1993 | |
| 1 | Rick Rhoden# | 1.000 | 1997 | |
| 1 | Jim Willis | 1.000 | 1982 | |
| 1 | Roy Oswalt# | 1.000 | 1989 | |
| 1 | Paul Moskau | 1.000 | 1986 | |
| 1 | Chris Capuano | 1.000 | 1994 | |
| 1 | Jim Willis | 1.000 | 1985 | |
| 1 | Freddie Toliver | 1.000 | 1984 | |
| 1 | Ray Bare# | 1.000 | 1990 | |
| 1 | John Miller# | 1.000 | 1988 | |
| 1 | La Marr Hoyt# | 1.000 | 1985 | |
| 1 | Joe Coleman | 1.000 | 1982 | |
| 1 | Atley Donald | 1.000 | 1990 | |
| 1 | Jon Matlack | 1.000 | 1984 | |
| 1 | Dillon Gee# | 1.000 | 1997 | |
| 1 | Chad Gaudin | 1.000 | 1981 | |
| 1 | Bill Lee# | 1.000 | 1992 | |
| 1 | Joe Coleman | 1.000 | 1984 | |
| 1 | John Fulgham# | 1.000 | 1991 | |
| 1 | Ricky Romero# | 1.000 | 1992 | |
| 1 | Bobby Shantz | 1.000 | 1991 | |
| 1 | Mark Buehrle# | 1.000 | 2000 | |
| 1 | Omar Olivares | 1.000 | 1985 | |
| 1 | Kyle Freeland# | 1.000 | 1995 | |
| 1 | Blake Snell# | 1.000 | 1990 | |
| 1 | Omar Olivares | 1.000 | 1982 | |
| 1 | Hiroki Kuroda# | 1.000 | 1995 | |
| 1 | Blake Snell# | 1.000 | 1997 | |
| 1 | Esteban Loaiza# | 1.000 | 1996 | |
| 1 | John King | 1.000 | 1985 | |
| 1 | Bob Anderson | 1.000 | 1996 | |
| 1 | Bob Anderson | 1.000 | 1991 | |
| 1 | Walker Buehler# | 1.000 | 1991 | |
| 1 | Jhoan Duran# | 1.000 | 1988 | |
| 76 | Carl Hubbell# | .800 | 2000 | |
| 76 | John Montefusco | .800 | 1993 | |
| 76 | Jim Willis | .800 | 1984 | |
| 76 | Ray Bare# | .800 | 1994 | |
| 76 | Chris Bosio | .800 | 1987 | |
| 76 | Blake Snell# | .800 | 1996 | |
| 76 | Barry Zito | .800 | 1986 | |
| 83 | Joe Krakauskas | .750 | 1984 | |
| 83 | Jeff Sellers | .750 | 1983 | |
| 83 | Jeff Sellers | .750 | 1995 | |
| 83 | Omar Daal | .750 | 1986 | |
| 83 | John Candelaria# | .750 | 1989 | |
| 83 | Daisuke Matsuzaka | .750 | 1987 | |
| 83 | Bill Gullickson# | .750 | 1993 | |
| 83 | Chris Holt# | .750 | 1997 | |
| 83 | Joe Coleman | .750 | 1983 | |
| 83 | Paul Moskau | .750 | 1982 | |
| 83 | Dave Dravecky | .750 | 1990 | |
| 83 | Hiroki Kuroda# | .750 | 1999 | |
| 83 | Len Barker | .750 | 1980 | |
| 83 | Henderson Alvarez III# | .750 | 2000 | |
| 83 | Daniel Wright | .750 | 1992 | |
| 83 | Luke Weaver# | .750 | 1992 | |
| 83 | Red Embree | .750 | 1983 | |
| 83 | Roy Oswalt# | .750 | 1993 |
