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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Man-chae Pack | 1.130 | 2024-2033 | |
| 1 | R.J. Kemp | 1.130 | 2008-2022 | |
| 1 | Masao Nara | 1.130 | 2008-2023 | |
| 4 | David Rizer | 1.118 | 2020-2032 | |
| 5 | R.J. Kapper* | 1.111 | 2029-2043 | |
| 6 | Alexis Camilo | 1.105 | 1998-2010 | |
| 7 | Pat Graves | 1.102 | 2034-2042 | |
| 8 | Dave Dillard | 1.099 | 2018-2025 | |
| 8 | Antonio Romo | 1.099 | 1983-1998 | |
| 10 | Jimmy Norman | 1.098 | 2018-2026 | |
| 11 | Bobby Tiscareno | 1.097 | 2002-2015 | |
| 12 | Alex Otero | 1.094 | 2007-2022 | |
| 13 | Brendon Gleason | 1.093 | 2001-2014 | |
| 14 | Dave Kendrick | 1.090 | 2018-2028 | |
| 14 | Ron Bilden | 1.090 | 2012-2019 | |
| 16 | Tom Smith | 1.089 | 2008-2019 | |
| 17 | Dave Willis | 1.088 | 2000-2012 | |
| 18 | Chris Lemus | 1.086 | 2025-2036 | |
| 18 | Gil Melgoza | 1.086 | 1983-1995 | |
| 20 | Pete Dunlap | 1.085 | 1996-2009 | |
| 21 | Johnny Swope* | 1.083 | 2024-2044 | |
| 22 | Dave Monks | 1.082 | 2012-2024 | |
| 23 | William George | 1.080 | 2007-2019 | |
| 24 | Jaime Middaugh | 1.079 | 2027-2033 | |
| 24 | Clancy Chatfield | 1.079 | 1992-1999 | |
| 24 | Dave Wescott | 1.079 | 2016-2024 | |
| 27 | Ty O'Neil | 1.077 | 2038-2045 | |
| 27 | Jim Newlin | 1.077 | 1982-1998 | |
| 29 | Raúl De Jesús | 1.076 | 1988-2001 | |
| 30 | Ted Hird | 1.075 | 2034-2042 | |
| 31 | Tom Miller | 1.072 | 2031-2039 | |
| 31 | Erik Colgate | 1.072 | 2018-2023 | |
| 31 | Teru Oka | 1.072 | 1999-2009 | |
| 34 | Ron Pillsbury | 1.071 | 1997-2010 | |
| 35 | Doug West | 1.070 | 1986-1992 | |
| 36 | Brad Dameron | 1.069 | 1987-1996 | |
| 37 | Ernie Lucas | 1.068 | 2016-2023 | |
| 37 | Dave Grafing | 1.068 | 2015-2027 | |
| 39 | Fitzpatrick Fisher | 1.067 | 2034-2041 | |
| 39 | Everardo Gremades* | 1.067 | 1979-1999 | |
| 41 | Danny Salcedo | 1.065 | 2001-2014 | |
| 42 | Edwin Vestal | 1.064 | 2042-2050 | |
| 42 | Rex Morgan* | 1.064 | 1991-2006 | |
| 42 | Jamie Monson | 1.064 | 2009-2020 | |
| 45 | Andy Ulloa | 1.061 | 2022-2027 | |
| 45 | Xavier Landress | 1.061 | 2022-2036 | |
| 47 | Curt Knight | 1.058 | 1989-2003 | |
| 47 | Reed Murray | 1.058 | 2038-2045 | |
| 49 | Joe Rojas* | 1.057 | 1989-2004 | |
| 49 | Hector Feliciano* | 1.057 | 2002-2019 | |
| 51 | Toyoshige Yamauchi | 1.056 | 1992-2002 | |
| 52 | Ethan Nygren | 1.055 | 2014-2022 | |
| 52 | Ian Ledbetter | 1.055 | 2008-2022 | |
| 54 | Don Castor | 1.054 | 1990-2004 | |
| 54 | Brian Blair | 1.054 | 2039-2051 | |
| 56 | Robby Lee | 1.052 | 2029-2041 | |
| 56 | Kenichi Sato | 1.052 | 1984-1997 | |
| 56 | Wessin Ramírez | 1.052 | 1995-2011 | |
| 59 | Pat Branum | 1.049 | 2029-2043 | |
| 60 | Milt Stoll | 1.048 | 2016-2025 | |
| 61 | Nari Garin | 1.047 | 1998-2009 | |
| 62 | Tommy Spielman | 1.046 | 2034-2041 | |
| 62 | Jaxson Neal | 1.046 | 2041-2056 | |
| 62 | Fujiya Yamamoto | 1.046 | 1999-2014 | |
| 65 | R.J. Kruzinski | 1.044 | 2032-2038 | |
| 65 | Blake Hartman | 1.044 | 2038-2046 | |
| 67 | Don O'Finegan | 1.043 | 1988-1998 | |
| 67 | Jud Cobb | 1.043 | 1988-1997 | |
| 67 | Elmer Caceres* | 1.043 | 2035-2052 | |
| 70 | Ray Stigger | 1.042 | 2048-2057 | |
| 71 | Dave Hodge | 1.041 | 2025-2035 | |
| 71 | Lucca Memmoli | 1.041 | 1994-2009 | |
| 71 | Jordan Camejo | 1.041 | 2003-2015 | |
| 71 | David Gamboa | 1.041 | 1999-2018 | |
| 75 | Dylan Owens* | 1.040 | 2017-2039 | |
| 75 | Yoshinaka Toiguchi | 1.040 | 1987-2000 | |
| 77 | Erik LaBruzzo | 1.039 | 2027-2035 | |
| 77 | Oscar Lerma | 1.039 | 1998-2010 | |
| 79 | Ian Harris | 1.038 | 2024-2031 | |
| 79 | Landon Tolleson | 1.038 | 2046-2055 | |
| 81 | Julian Irwin# | 1.037 | 2046-2059 | |
| 81 | Frank Zamora | 1.037 | 2002-2016 | |
| 83 | Kevin Langford | 1.035 | 2021-2032 | |
| 84 | Chaz Welliver | 1.034 | 2042-2057 | |
| 85 | Kaleb Clinkingbeard | 1.031 | 2044-2056 | |
| 85 | Darryl Dellinger | 1.031 | 2014-2021 | |
| 87 | Judd Ramirez | 1.030 | 2040-2056 | |
| 87 | Zander Howard# | 1.030 | 2044-2058 | |
| 87 | Jesse Burchette | 1.030 | 1982-1992 | |
| 90 | Tommy Farless | 1.029 | 2011-2023 | |
| 90 | Stuart Beale# | 1.029 | 2044-2058 | |
| 90 | Don Hudson | 1.029 | 1989-2003 | |
| 90 | Fred Ratley | 1.029 | 2018-2031 | |
| 94 | Pat Nunes* | 1.026 | 2032-2054 | |
| 94 | Pat Walton | 1.026 | 2029-2039 | |
| 94 | Dani Álvarez* | 1.026 | 1983-2001 | |
| 97 | Darrell Petty# | 1.025 | 2051-2060 | |
| 97 | Ron O'Fallon | 1.025 | 1986-1998 | |
| 97 | Jared Kirby* | 1.025 | 1978-1996 | |
| 97 | Carmem Chamissa* | 1.025 | 1989-2001 |
