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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Tom Estes | 1.243 | 2013 | |
| 2 | Willie Hernandez | 1.237 | 1996 | |
| 3 | Nelson Herrera | 1.201 | 2010 | |
| 3 | Loren Wallace | 1.201 | 1991 | |
| 5 | Tom Estes | 1.189 | 2016 | |
| 6 | Tom Estes | 1.188 | 2015 | |
| 7 | Sonny Mason | 1.184 | 2014 | |
| 8 | Jimmy Collins | 1.172 | 2017 | |
| 9 | Dave Watkins | 1.171 | 2002 | |
| 10 | B.J. Jobe | 1.169 | 2003 | |
| 11 | Dane Browning | 1.163 | 1991 | |
| 12 | Loren Wallace | 1.162 | 1993 | |
| 13 | Oscar Sanchez | 1.159 | 2014 | |
| 14 | Tom Estes | 1.158 | 2017 | |
| 15 | B.J. Jobe | 1.154 | 2002 | |
| 16 | Rex Knight* | 1.152 | 2001 | |
| 17 | Ethan Stuart | 1.150 | 2017 | |
| 18 | Dane Browning | 1.147 | 1992 | |
| 18 | Oscar Sanchez | 1.147 | 2011 | |
| 20 | B.J. Mulcahy | 1.145 | 2008 | |
| 21 | Ethan Bafford* | 1.144 | 2014 | |
| 22 | Dave Watkins | 1.143 | 2005 | |
| 22 | Murdoch Turcotte | 1.143 | 1992 | |
| 22 | Lonnie Johnston | 1.143 | 2002 | |
| 25 | Dave Sliney | 1.142 | 2023 | |
| 26 | Chad Sinclair | 1.141 | 1998 | |
| 27 | Rex Knight* | 1.140 | 1997 | |
| 28 | Jonathan Morales | 1.139 | 2019 | |
| 29 | Ethan Bafford* | 1.137 | 2013 | |
| 29 | Angelo Barrios | 1.137 | 2002 | |
| 31 | Daniel Larivée | 1.136 | 2003 | |
| 32 | Lonnie Johnston | 1.135 | 2001 | |
| 32 | Jimmy Gray | 1.135 | 2024 | |
| 34 | Daniel Amyot | 1.133 | 2018 | |
| 34 | Erik Upton | 1.133 | 2019 | |
| 36 | B.J. Parker | 1.131 | 1993 | |
| 36 | Ed McAllister | 1.131 | 2017 | |
| 38 | Willie Garcia | 1.129 | 2004 | |
| 38 | Jonathan Morales | 1.129 | 2016 | |
| 38 | Jamie Urmson* | 1.129 | 2024 | |
| 41 | Jared Harrison | 1.128 | 2051 | |
| 41 | Bobby Marrero | 1.128 | 2017 | |
| 41 | Dave Schneider | 1.128 | 2019 | |
| 41 | Justin Castiglioni# | 1.128 | 2059 | |
| 45 | Pat Marlin | 1.124 | 2000 | |
| 45 | Jerry Brown | 1.124 | 2006 | |
| 45 | Ethan Bafford* | 1.124 | 2012 | |
| 48 | Zachary Smith | 1.123 | 2026 | |
| 49 | Lonnie Johnston | 1.122 | 2000 | |
| 50 | Jimmy Collins | 1.121 | 2022 | |
| 51 | Lonnie Johnston | 1.120 | 2005 | |
| 51 | Jimmy Gray | 1.120 | 2023 | |
| 53 | Pete Gentry | 1.119 | 1993 | |
| 53 | Ryan Hubbard | 1.119 | 2044 | |
| 55 | Lonnie Johnston | 1.118 | 1998 | |
| 56 | Dave Sliney | 1.117 | 2025 | |
| 56 | Zachary Smith | 1.117 | 2021 | |
| 58 | Pat Payne | 1.116 | 1994 | |
| 58 | Ricky Murillo* | 1.116 | 2017 | |
| 60 | B.J. Parker | 1.115 | 1991 | |
| 60 | Ethan Bafford* | 1.115 | 2011 | |
| 60 | Hector Gutierrez | 1.115 | 2009 | |
| 60 | Tom Estes | 1.115 | 2019 | |
| 64 | Marco Volquez | 1.114 | 2011 | |
| 65 | Shawn Burton | 1.113 | 1998 | |
| 65 | Jimmy Collins | 1.113 | 2023 | |
| 65 | Alex Leanos | 1.113 | 2014 | |
| 68 | Hector Gutierrez | 1.109 | 2010 | |
| 69 | Jared Harrison | 1.108 | 2052 | |
| 69 | Jimmy Farrell | 1.108 | 2022 | |
| 69 | Fred Schubert | 1.108 | 2017 | |
| 69 | Rex Knight* | 1.108 | 1999 | |
| 73 | Jimmy Collins | 1.107 | 2019 | |
| 73 | Alexis Pena | 1.107 | 2030 | |
| 73 | Johnny Patterson | 1.107 | 2008 | |
| 76 | Billy Noble | 1.106 | 2048 | |
| 77 | Ernie Naylon | 1.105 | 2024 | |
| 78 | Marco Volquez | 1.104 | 2012 | |
| 79 | Antonio Ontiveros | 1.103 | 2022 | |
| 79 | Sonny Mason | 1.103 | 2018 | |
| 79 | Johnny Patterson | 1.103 | 2007 | |
| 79 | Hector Gutierrez | 1.103 | 2011 | |
| 83 | Ryan Hubbard | 1.102 | 2046 | |
| 83 | Donnie Small | 1.102 | 1997 | |
| 85 | Brad Flynn | 1.101 | 1996 | |
| 85 | Dave Watkins | 1.101 | 2000 | |
| 87 | Percival Worosun | 1.100 | 2048 | |
| 88 | Manny Reyes | 1.099 | 2017 | |
| 88 | Jimmy Gray | 1.099 | 2021 | |
| 90 | Fred Schubert | 1.098 | 2015 | |
| 90 | B.J. Parker | 1.098 | 1992 | |
| 92 | B.J. Mulcahy | 1.096 | 2009 | |
| 92 | Alex Lezama | 1.096 | 2036 | |
| 92 | Manny Reyes | 1.096 | 2012 | |
| 92 | Roberto Becerra | 1.096 | 2021 | |
| 92 | Lonnie Johnston | 1.096 | 1997 | |
| 97 | Manny Reyes | 1.095 | 2016 | |
| 97 | Ethan Bafford* | 1.095 | 2015 | |
| 97 | Doug Gill | 1.095 | 1998 | |
| 97 | Lonnie Scott | 1.095 | 1992 |
