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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Mark Richardson | .6360 | 2012 | |
| 2 | Mark Richardson | .6240 | 2011 | |
| 3 | Pablo Ortíz# | .6199 | 2038 | |
| 4 | Ronald Lowry | .5874 | 2013 | |
| 5 | Pablo Ortíz# | .5783 | 2037 | |
| 6 | Mark Richardson | .5749 | 2013 | |
| 7 | Jin-song Zambrano# | .5684 | 2038 | |
| 8 | Ronald Lowry | .5486 | 2019 | |
| 9 | Andrés Hernández | .5450 | 2023 | |
| 10 | Andrés Hernández | .5420 | 2025 | |
| 11 | Ronald Lowry | .5394 | 2016 | |
| 12 | Andrés Hernández | .5375 | 2022 | |
| 13 | Andrés Hernández | .5337 | 2026 | |
| 14 | Ronald Lowry | .5331 | 2021 | |
| 15 | Ricardo Mateo# | .5268 | 2030 | |
| 16 | Rafael Suárez | .5252 | 2021 | |
| 17 | Steve Fergus | .5231 | 2012 | |
| 18 | Alejandro Ortega | .5227 | 2008 | |
| 19 | Ken Keddy | .5171 | 2014 | |
| 20 | Augusto Quiñones | .5145 | 2009 | |
| 21 | Ronald Lowry | .5114 | 2017 | |
| 22 | Thom Wright | .5108 | 2021 | |
| 23 | George Riley | .5079 | 2011 | |
| 24 | Pablo Ortíz# | .5076 | 2039 | |
| 25 | Chris Long | .5067 | 2017 | |
| 26 | José Alemán# | .5062 | 2036 | |
| 27 | Bud Hoffman | .5009 | 2010 | |
| 28 | Ricardo Mateo# | .5008 | 2036 | |
| 29 | Jin-song Zambrano# | .5000 | 2039 | |
| 30 | Ricardo Mateo# | .4991 | 2033 | |
| 31 | Bryan Cleveland | .4977 | 2023 | |
| 32 | Steve Harris | .4959 | 2014 | |
| 33 | Augusto Quiñones | .4940 | 2010 | |
| 34 | Rodrigo Vásquez# | .4938 | 2033 | |
| 35 | Theodore Boyd | .4909 | 2007 | |
| 35 | Chris Long | .4909 | 2016 | |
| 37 | António Gutiérrez# | .4896 | 2038 | |
| 38 | Naomi Honma# | .4882 | 2029 | |
| 39 | Naomi Honma# | .4881 | 2030 | |
| 40 | Luis Cedeño | .4875 | 2027 | |
| 41 | Ricardo Mateo# | .4859 | 2038 | |
| 42 | Henry Davis# | .4850 | 2038 | |
| 43 | Ronald Lowry | .4828 | 2018 | |
| 44 | George Árias | .4826 | 2022 | |
| 45 | Raúl Medina | .4825 | 2017 | |
| 46 | Chris Long | .4795 | 2021 | |
| 47 | Bryan Cleveland | .4786 | 2021 | |
| 48 | Andrés Hernández | .4723 | 2024 | |
| 49 | Emílio Manuel | .4720 | 2019 | |
| 50 | Héctor Castillo | .4705 | 2011 | |
| 51 | Gil Sterling | .4704 | 2018 | |
| 52 | Raúl Medina | .4702 | 2023 | |
| 53 | Alfredo Vega | .4695 | 2014 | |
| 54 | Jin-song Zambrano# | .4680 | 2037 | |
| 55 | Chris Long | .4674 | 2018 | |
| 56 | Steve Fergus | .4663 | 2011 | |
| 57 | Chris Holmes | .4660 | 2023 | |
| 58 | Nick Giles | .4658 | 2021 | |
| 59 | Ricardo Mateo# | .4648 | 2039 | |
| 60 | Héctor Castillo | .4628 | 2009 | |
| 61 | David Teague | .4622 | 2012 | |
| 62 | Jin-song Zambrano# | .4611 | 2035 | |
| 63 | Royce Raines | .4610 | 2027 | |
| 64 | Raúl Medina | .4605 | 2021 | |
| 65 | Chris Long | .4597 | 2020 | |
| 66 | Eric Nelson# | .4587 | 2037 | |
| 67 | George Riley | .4558 | 2007 | |
| 68 | Steve Fergus | .4556 | 2013 | |
| 69 | Andrés Hernández | .4547 | 2021 | |
| 70 | Miguel Cortéz | .4541 | 2010 | |
| 71 | Miguel Soto | .4523 | 2012 | |
| 72 | Brian Coleman | .4500 | 2022 | |
| 73 | Royce Raines | .4481 | 2030 | |
| 74 | Raúl Medina | .4479 | 2018 | |
| 75 | Brian O'Donnell | .4478 | 2007 | |
| 76 | Chris Long | .4476 | 2019 | |
| 77 | Royce Raines | .4469 | 2031 | |
| 78 | Rodrigo Vásquez# | .4459 | 2036 | |
| 79 | Ricardo Mateo# | .4443 | 2034 | |
| 80 | Steve Harris | .4437 | 2013 | |
| 81 | Stan Gill | .4436 | 2012 | |
| 82 | Leon Brunelle | .4423 | 2020 | |
| 83 | Nathan Bolitho | .4414 | 2012 | |
| 84 | Alfredo Vega | .4407 | 2015 | |
| 85 | Lonnie Dixon | .4397 | 2031 | |
| 86 | José Alemán# | .4395 | 2035 | |
| 87 | Miguel Cortéz | .4389 | 2007 | |
| 88 | Boyd Johnson | .4379 | 2020 | |
| 89 | Steve Fergus | .4355 | 2015 | |
| 90 | Hang-ki Fu# | .4350 | 2038 | |
| 91 | Naomi Honma# | .4349 | 2032 | |
| 92 | Ricardo Mateo# | .4346 | 2028 | |
| 93 | Barry Wallace# | .4345 | 2027 | |
| 93 | Ricardo Mateo# | .4345 | 2032 | |
| 95 | Boyd Johnson | .4344 | 2021 | |
| 96 | Miguel Soto | .4343 | 2008 | |
| 97 | Sam Olson# | .4333 | 2036 | |
| 98 | Jorge Velasco | .4319 | 2015 | |
| 99 | Edward Buckner | .4316 | 2021 | |
| 100 | Naomi Honma# | .4310 | 2034 |
