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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Rich Fiorina | .5000 | 2026 | |
| 2 | Jose Gonzalez | .4935 | 2027 | |
| 3 | Chris Murphy | .4931 | 2005 | |
| 4 | Roberto Covarrubias | .4910 | 2027 | |
| 5 | Luis Flores | .4909 | 2025 | |
| 6 | Steve Miller | .4868 | 2026 | |
| 7 | Rich Casas | .4865 | 2011 | |
| 8 | Omar Prado | .4831 | 2027 | |
| 9 | Tom DiCroce | .4823 | 2020 | |
| 10 | Xavier Cummins | .4797 | 2031 | |
| 11 | Jon Carrillo | .4788 | 2016 | |
| 12 | Martin Soto | .4786 | 2025 | |
| 13 | Walt Towle | .4784 | 2029 | |
| 14 | Ray Allen | .4745 | 2015 | |
| 15 | Jose Cabral | .4737 | 2024 | |
| 16 | Ryan Weathersbee | .4706 | 2030 | |
| 17 | Franklin Leon | .4703 | 2030 | |
| 18 | Luis Galdames | .4702 | 2022 | |
| 19 | Gilles Lelièvre | .4701 | 2026 | |
| 20 | Joseph Irwin | .4679 | 2013 | |
| 21 | Josh Lagana | .4671 | 2031 | |
| 22 | John Muljana | .4652 | 2020 | |
| 23 | Tony Guillen | .4646 | 2025 | |
| 24 | John Meek | .4642 | 2015 | |
| 25 | Alfonso Torres | .4638 | 2022 | |
| 25 | Willie Gurdian | .4638 | 2027 | |
| 27 | Brett Reimer | .4621 | 2024 | |
| 28 | David Roldan | .4615 | 2025 | |
| 29 | Dennis Steinman | .4604 | 2014 | |
| 30 | Adam Brown | .4598 | 2017 | |
| 31 | Sid Goodspeed | .4597 | 2031 | |
| 32 | Antonio Garate | .4594 | 2022 | |
| 33 | John Mischke | .4574 | 2019 | |
| 34 | Poison Coral | .4572 | 2035 | |
| 35 | Flavio Grancagnola | .4564 | 2014 | |
| 36 | Gil Marines | .4560 | 2025 | |
| 37 | Justin Floyd | .4551 | 2008 | |
| 38 | Eric Mooney | .4549 | 2010 | |
| 39 | Felipe Torrellas | .4545 | 2031 | |
| 40 | Jeremain de Boer | .4535 | 2042 | |
| 41 | Alejandro Garza | .4528 | 2013 | |
| 42 | Ken Fulco | .4523 | 2004 | |
| 43 | Matt Steele | .4520 | 2026 | |
| 44 | Dusty Steele | .4517 | 2030 | |
| 45 | Kevin Cooper | .4511 | 2021 | |
| 46 | Billy Phillips | .4508 | 2028 | |
| 46 | T.J. Burns | .4508 | 2025 | |
| 46 | Estevan Cordoba | .4508 | 2031 | |
| 49 | John Howerton | .4505 | 2009 | |
| 50 | Bill Rice | .4504 | 2025 | |
| 51 | George Stahl | .4502 | 2027 | |
| 52 | Carlos Cantu | .4500 | 2024 | |
| 53 | Josh Huntington | .4490 | 2021 | |
| 53 | Tomas Pacheco | .4490 | 2030 | |
| 55 | Jose Jimenez | .4488 | 2020 | |
| 56 | Kyle Fetrow | .4484 | 2030 | |
| 57 | Kinnon Ketcheson | .4481 | 2005 | |
| 58 | Branden Jaskolka | .4480 | 2021 | |
| 59 | Phoenix DeWerff | .4474 | 2037 | |
| 60 | Hector Cortez | .4472 | 2020 | |
| 61 | Keiran Coleman# | .4462 | 2043 | |
| 61 | Efrain Lopez | .4462 | 2012 | |
| 63 | Rodrigo Quintana | .4456 | 2020 | |
| 64 | Roldão Redinho | .4451 | 2026 | |
| 65 | Roberto Covarrubias | .4444 | 2026 | |
| 65 | Erik Goodwin | .4444 | 2006 | |
| 67 | Pedro Polanco | .4440 | 2039 | |
| 67 | Demondre Jenkins | .4440 | 2034 | |
| 67 | Bob Dingwell | .4440 | 2026 | |
| 70 | Will Johnson# | .4439 | 2039 | |
| 71 | Andy Trainor | .4434 | 2027 | |
| 72 | Dennie Knapp | .4429 | 2032 | |
| 73 | Vincent Villanueva | .4423 | 2023 | |
| 73 | Luis Matos | .4423 | 2007 | |
| 75 | Eric Bonney | .4422 | 2020 | |
| 76 | Mason Laney# | .4415 | 2037 | |
| 77 | Eddie Chamorro | .4414 | 2020 | |
| 78 | Juan Jurado | .4409 | 2005 | |
| 79 | Cesar Vargas | .4408 | 2022 | |
| 80 | Dan Thoman | .4407 | 2021 | |
| 81 | Júlio De Alba | .4406 | 2036 | |
| 82 | Xavier Cummins | .4401 | 2030 | |
| 83 | Travis Clubb | .4400 | 2023 | |
| 84 | Philip Shape | .4398 | 2026 | |
| 85 | Itsuto Ohira | .4397 | 2020 | |
| 86 | Tom Parietti | .4396 | 2019 | |
| 86 | Greg Yakes | .4396 | 2020 | |
| 88 | Atílio Zagury | .4395 | 2026 | |
| 88 | Arturo Astello | .4395 | 2006 | |
| 90 | Adam McKenzie# | .4391 | 2047 | |
| 91 | Manny Espino | .4390 | 2015 | |
| 92 | Mike Palencia | .4388 | 2013 | |
| 93 | Mandel Wagner | .4387 | 2022 | |
| 94 | Aaron Dahl | .4385 | 2008 | |
| 95 | Michinobu Ito | .4384 | 2028 | |
| 95 | Nate Collins | .4384 | 2027 | |
| 97 | Mark Engle | .4382 | 2013 | |
| 97 | Braden Kirgan# | .4382 | 2044 | |
| 99 | Fernando Urroz | .4381 | 2016 | |
| 100 | Danny Cortes | .4380 | 2026 |
