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| Career On-Base Pct Leaderboard | |
| * - Indicates Hall of Fame Bold - Indicates active player |
| Rank | Player | On-Base Pct | PA | Years | Single Season Leaderboard |
| 1. | Andy Ping | .4412 | 5678 | 2021-2029 | |
| 2. | Bill Worm | .4267 | 8454 | 2014-2029 | |
| 3. | Jose Chavero | .4127 | 4633 | 2022-2029 | |
| 4. | Flyswatter Pentecost | .4117 | 5196 | 2020-2029 | |
| 5. | Tanner Chayse * | .4095 | 11089 | 2000-2017 | |
| 6. | Ron Guinan | .4094 | 6039 | 2019-2029 | |
| 7. | Harry Andrews | .4092 | 4890 | 2022-2029 | |
| 8. | Cliff Butter | .4091 | 6965 | 2017-2029 | |
| 9. | Sanford Powers | .4088 | 10625 | 2014-2029 | |
| 10. | Seamus O'Dule * | .4054 | 12061 | 2000-2021 | |
| 11. | Santo Tedesco | .4046 | 6445 | 2019-2029 | |
| 12. | Blinky Crouch | .3995 | 6751 | 2018-2029 | |
| 13. | Alex Garza * | .3989 | 6820 | 2000-2011 | |
| 14. | Anthony Beckford * | .3949 | 7657 | 2000-2013 | |
| 15. | Matt McQuade * | .3942 | 10532 | 2003-2020 | |
| 16. | Blair Glaspie | .3937 | 5234 | 2021-2029 | |
| 17. | Jimmie Davis * | .3900 | 3724 | 2000-2006 | |
| 18. | Mack Outlaw | .3899 | 3183 | 2025-2029 | |
| 19. | Hank Carruthers | .3881 | 5422 | 2020-2029 | |
| 20. | Mark Stone | .3873 | 5743 | 2018-2029 | |
| 21. | Rey Moncayo * | .3870 | 7698 | 2002-2014 | |
| 22. | Barry Price | .3862 | 5696 | 2013-2025 | |
| 23. | Carmelo Fons * | .3850 | 9026 | 2005-2021 | |
| 24. | Andrew Kegler | .3850 | 9850 | 2013-2029 | |
| 25. | Lane Commons * | .3827 | 9290 | 2003-2017 | |
| 26. | Gandalf Greyheme * | .3824 | 11069 | 2003-2020 | |
| 27. | Ethan Teller | .3819 | 6162 | 2020-2029 | |
| 28. | Aquilino Castillanos | .3816 | 4395 | 2022-2029 | |
| 29. | Jacinto Leon | .3803 | 5871 | 2000-2010 | |
| 30. | Brian Marshall * | .3803 | 12282 | 2000-2018 | |
| 31. | Larry Sears | .3800 | 8969 | 2014-2029 | |
| 32. | Jimmy Font | .3798 | 10261 | 2010-2027 | |
| 33. | Tyson Bacon * | .3796 | 13464 | 2000-2022 | |
| 34. | Spooner Shenk | .3795 | 5457 | 2021-2029 | |
| 35. | Lee Desilva | .3783 | 5741 | 2020-2029 | |
| 36. | Thad Hambro | .3775 | 3759 | 2022-2029 | |
| 37. | Bill Newbold | .3773 | 6756 | 2019-2029 | |
| 38. | Bill Hawking | .3772 | 5737 | 2020-2029 | |
| 39. | Eric Fender | .3770 | 5189 | 2020-2029 | |
| 40. | Renaldo Loera | .3762 | 5922 | 2000-2009 | |
| 41. | Bill Long | .3761 | 5251 | 2000-2008 | |
| 42. | Gene Halpern | .3753 | 8036 | 2009-2022 | |
| 43. | Michael Koo Jr * | .3744 | 12588 | 2000-2019 | |
| 44. | Jerry Jorge | .3738 | 8167 | 2015-2029 | |
| 45. | Richard Ruffner | .3726 | 3532 | 2000-2006 | |
| 46. | Summer Nelson * | .3722 | 13326 | 2000-2020 | |
| 47. | Tony Romo | .3717 | 7909 | 2013-2026 | |
| 48. | Skipper Cage | .3715 | 5097 | 2022-2029 | |
| 49. | Donnie Bremer | .3705 | 7981 | 2017-2029 | |
| 50. | Garry Vandiver | .3704 | 4892 | 2020-2029 | |
| 51. | Shane Jaggers | .3701 | 5707 | 2017-2029 | |
| 52. | Glen Mallory | .3685 | 3401 | 2024-2029 | |
| 53. | Brett Ward | .3682 | 6303 | 2006-2019 | |
| 54. | Cisco Delgado | .3674 | 3802 | 2021-2029 | |
| 55. | Harold Knight | .3667 | 6346 | 2006-2017 | |
| 56. | Johney Yoon | .3665 | 5817 | 2000-2009 | |
| 57. | Carlos Pena | .3665 | 5789 | 2009-2022 | |
| 58. | Greg Holt | .3664 | 4916 | 2021-2029 | |
| 59. | Karl Immell | .3661 | 9774 | 2011-2027 | |
| 60. | Aluino Castellan | .3660 | 4177 | 2022-2029 | |
| 61. | Garth Walker | .3659 | 6743 | 2016-2029 | |
| 62. | Aaron Slaughter | .3658 | 6634 | 2010-2024 | |
| 63. | Andrew Wilson | .3656 | 3737 | 2024-2029 | |
| 64. | Tom Galaxy | .3653 | 6355 | 2019-2029 | |
| 65. | Sidney Sedgwick | .3647 | 5808 | 2000-2010 | |
| 66. | Matthew Strom | .3645 | 6615 | 2004-2016 | |
| 67. | Paul Sidgwick | .3642 | 6554 | 2019-2029 | |
| 68. | Joel Huertas | .3634 | 10198 | 2014-2029 | |
| 69. | In-Sun An | .3633 | 7689 | 2007-2022 | |
| 70. | Sully Sullivan * | .3632 | 5234 | 2000-2009 | |
| 71. | Frank Gillbard | .3630 | 6457 | 2018-2029 | |
| 72. | Thomas Walker | .3629 | 3890 | 2007-2013 | |
| 73. | Rudy Lareau | .3629 | 7843 | 2010-2025 | |
| 74. | Nightmare Massengill | .3622 | 5030 | 2021-2029 | |
| 75. | Felix Atkinson | .3621 | 3454 | 2000-2005 | |
| 76. | Fred Haigney | .3621 | 3866 | 2023-2029 | |
| 77. | Leonel Lagunes | .3620 | 6388 | 2018-2029 | |
| 78. | Bates Schatz | .3614 | 3542 | 2024-2029 | |
| 79. | Erwin Ejea | .3610 | 4259 | 2019-2029 | |
| 80. | Vincent Vannatta | .3608 | 4301 | 2002-2014 | |
| 81. | Felton Olney | .3607 | 10112 | 2013-2029 | |
| 82. | Donald Birnbaum | .3606 | 7083 | 2000-2012 | |
| 83. | Ray Festa | .3605 | 7541 | 2001-2016 | |
| 84. | Chris Lott | .3605 | 8546 | 2005-2018 | |
| 85. | Almedar Noche | .3602 | 8758 | 2008-2024 | |
| 86. | Rafael Pocovi | .3598 | 3671 | 2024-2029 | |
| 87. | Jason Kroner * | .3598 | 10707 | 2000-2018 | |
| 88. | Mason Highsmith | .3598 | 10686 | 2007-2024 | |
| 89. | Jarvis Holeman | .3597 | 8003 | 2007-2020 | |
| 90. | Guillermo Guapo | .3597 | 6878 | 2006-2018 | |
| 91. | Antonio Herrera | .3595 | 8144 | 2000-2012 | |
| 92. | George Contreras | .3594 | 5612 | 2014-2025 | |
| 93. | Rosario Villalvazo | .3592 | 4271 | 2000-2007 | |
| 94. | Issac Phillips | .3592 | 8097 | 2012-2029 | |
| 95. | Hugo Grimm | .3591 | 4214 | 2000-2008 | |
| 96. | Chad Shone | .3590 | 4391 | 2020-2029 | |
| 97. | Jerry Rivers | .3589 | 7955 | 2015-2029 | |
| 98. | Tracy Jordan | .3586 | 4230 | 2000-2007 | |
| 99. | Jeffrey Langston | .3570 | 9804 | 2006-2024 | |
| 100. | Juan Linarez | .3569 | 3874 | 2024-2029 |
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