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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Aiden Allen | .4931 | 2020 | |
| 2 | Guillermo Cortez | .4744 | 2025 | |
| 3 | Jon Carrillo | .4669 | 2015 | |
| 4 | River Grote# | .4631 | 2045 | |
| 5 | Kevin Styck | .4615 | 2015 | |
| 6 | Justin Lawson | .4598 | 2027 | |
| 7 | Ryan McIntyre | .4582 | 2023 | |
| 8 | Jon Madrigal | .4579 | 2005 | |
| 9 | Dave de la Rosa | .4530 | 2021 | |
| 10 | Justin McArthur | .4508 | 2016 | |
| 11 | Allen Hunter | .4474 | 2012 | |
| 12 | Josh Hunt | .4469 | 2020 | |
| 13 | Gavin Fry | .4444 | 2009 | |
| 14 | Ricardo Anaya | .4425 | 2023 | |
| 15 | Cristobal Juarez | .4417 | 2025 | |
| 16 | Joe Mooney | .4413 | 2010 | |
| 17 | Corey Cupp | .4410 | 2023 | |
| 18 | Esteban Veliz | .4398 | 2032 | |
| 19 | Mike Russo | .4397 | 2010 | |
| 20 | Mandel Wagner | .4395 | 2021 | |
| 21 | Bobby Rice | .4375 | 2016 | |
| 22 | Yadier Navas | .4351 | 2037 | |
| 23 | Travis Fontana | .4345 | 2015 | |
| 24 | Edgar Esparza | .4321 | 2026 | |
| 25 | Blake Davis | .4319 | 2018 | |
| 26 | Adam Sullivan | .4299 | 2025 | |
| 27 | Joe O'Bryant | .4286 | 2018 | |
| 28 | Fernando Urroz | .4281 | 2015 | |
| 29 | Luis Herrera | .4279 | 2020 | |
| 30 | Agusto Valle | .4272 | 2031 | |
| 31 | Kaiden Boshears# | .4264 | 2044 | |
| 32 | Steve Vandenberg | .4252 | 2013 | |
| 33 | Beau Pilger | .4249 | 2022 | |
| 34 | Cristobal Juarez | .4244 | 2024 | |
| 35 | Chris Weaver | .4242 | 2029 | |
| 36 | Xavier Kimble | .4234 | 2012 | |
| 37 | Dan Adams | .4221 | 2013 | |
| 38 | Halford Pickett | .4216 | 2031 | |
| 39 | Derek Aguirre | .4211 | 2031 | |
| 40 | Roberto Ruiz | .4205 | 2019 | |
| 41 | Scott Mayberry | .4202 | 2008 | |
| 42 | Chris Maloney | .4200 | 2013 | |
| 43 | Roberto Valdez | .4194 | 2030 | |
| 44 | Rich D'Ambra | .4175 | 2014 | |
| 45 | Earl Witter | .4173 | 2013 | |
| 46 | Andrew Barnett | .4167 | 2015 | |
| 46 | Dante Madruga | .4167 | 2027 | |
| 48 | Josh Murphy | .4164 | 2013 | |
| 49 | David Dunbar | .4160 | 2016 | |
| 50 | Tyson Bass | .4155 | 2010 | |
| 51 | Montel Arvizo | .4145 | 2034 | |
| 52 | Doug Strub | .4142 | 2017 | |
| 53 | Jim Leff | .4139 | 2025 | |
| 54 | Angel Romo | .4137 | 2019 | |
| 55 | David Placido | .4135 | 2017 | |
| 56 | Ruben Morin | .4133 | 2012 | |
| 57 | Joey Palmer | .4130 | 2032 | |
| 58 | Roberto Rodriquez | .4120 | 2017 | |
| 59 | Jeff Hiatt | .4118 | 2006 | |
| 60 | Oscar Prado | .4102 | 2018 | |
| 61 | Zach DiMaggio | .4099 | 2020 | |
| 62 | Ken Cartee | .4097 | 2018 | |
| 63 | Kevin Lichtenstein | .4094 | 2030 | |
| 64 | John Molina | .4093 | 2027 | |
| 65 | Matt Terhaar | .4087 | 2027 | |
| 66 | Bobby Perez | .4081 | 2024 | |
| 67 | Jason Mullin | .4072 | 2020 | |
| 68 | Carlos Soto | .4070 | 2012 | |
| 68 | Bobby Torrence | .4070 | 2011 | |
| 70 | Darren Owens | .4068 | 2023 | |
| 71 | Vincent Wright | .4066 | 2043 | |
| 72 | Victor Manuel Lisboa | .4065 | 2030 | |
| 72 | Reynaldo Saucedo | .4065 | 2025 | |
| 74 | Ricky Ortiz | .4064 | 2024 | |
| 75 | Paços Shearman | .4062 | 2019 | |
| 76 | Dana Renfro | .4058 | 2005 | |
| 77 | Mason Rowe | .4054 | 2031 | |
| 78 | Chris Moore | .4045 | 2016 | |
| 79 | Mitch Armstrong | .4044 | 2006 | |
| 80 | Tim Rohland | .4043 | 2019 | |
| 81 | Brian Schaffner | .4040 | 2020 | |
| 82 | Jeremy Llorens | .4034 | 2021 | |
| 83 | Alberto Chavez | .4030 | 2011 | |
| 84 | Kyle Jeansonne | .4029 | 2009 | |
| 84 | Russell Breton | .4029 | 2032 | |
| 86 | Tom Stevenson | .4024 | 2010 | |
| 86 | Jayden Brown | .4024 | 2018 | |
| 88 | Nate Freye | .4015 | 2012 | |
| 88 | Jesse Warren | .4015 | 2014 | |
| 90 | Andy Avila | .4014 | 2025 | |
| 91 | Alexis Prieto | .4013 | 2032 | |
| 92 | Jayden Jackson | .4008 | 2008 | |
| 93 | Tom Forbes | .4007 | 2005 | |
| 94 | Ryan Winston | .4000 | 2021 | |
| 95 | Bob Robles | .3993 | 2024 | |
| 96 | Victor Lopez | .3992 | 2026 | |
| 97 | Eric Ivey | .3991 | 2025 | |
| 98 | Eric Fletcher | .3986 | 2022 | |
| 99 | Sean Mester | .3984 | 2031 | |
| 100 | Chris Jones | .3978 | 2026 |
