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| Career Post-Season Slugging Pct Leaderboard | |
| * - Indicates Hall of Fame | |
| Bold - Indicates active player |
| Rank | Player | Slugging Pct | PA | Last Year | Single Season Leaderboard |
| 1. | Tony Marpons | .8372 | 46 | 2024 | |
| 2. | Andrew Stafford | .8099 | 157 | 2004 | |
| 3. | Richard Pease | .7632 | 42 | 2021 | |
| 4. | George Selders | .7462 | 138 | 2003 | |
| 5. | Rodolfo Uriarte | .7246 | 75 | 2025 | |
| 6. | John Bodie | .7213 | 66 | 2023 | |
| 7. | Burt Brooke | .6747 | 90 | 2002 | |
| 8. | Eitoku Shinrikiyaru | .6582 | 82 | 2024 | |
| 9. | Gary Frances * | .6345 | 163 | 2006 | |
| 10. | Scott Stamps | .6310 | 88 | 2003 | |
| 11. | Tony Ehmann * | .6165 | 139 | 2011 | |
| 12. | Isidro Ehlers | .6136 | 46 | 2007 | |
| 13. | Ralph Teachout | .6111 | 160 | 2006 | |
| 14. | Robert Freel | .6104 | 85 | 2014 | |
| 15. | Victor Scott | .6038 | 58 | 2008 | |
| 16. | William Remy * | .5941 | 192 | 2007 | |
| 17. | Francesco Cordova | .5864 | 207 | 2019 | |
| 18. | Tanner Mick | .5846 | 80 | 2015 | |
| 19. | Brandon Long | .5824 | 103 | 2003 | |
| 20. | Tod Cooper | .5818 | 58 | 2024 | |
| 21. | Bobby Rose | .5814 | 48 | 2016 | |
| 22. | Brian Devinney * | .5809 | 150 | 2014 | |
| 23. | Ricky Stjean | .5806 | 67 | 2020 | |
| 24. | Barton Emrich * | .5789 | 188 | 2005 | |
| 25. | Gabriel Zeitler | .5781 | 137 | 2015 | |
| Francis Narcisse | .5781 | 73 | 2003 | ||
| 27. | Roy Michel | .5778 | 99 | 2004 | |
| 28. | Dane Doolin | .5758 | 77 | 2003 | |
| 29. | Terrance Morales | .5679 | 92 | 2002 | |
| 30. | Mugihiko Denbe | .5664 | 118 | 2021 | |
| 31. | Peter Houle | .5628 | 280 | 2021 | |
| 32. | Xavier Diaz | .5610 | 43 | 2025 | |
| 33. | Wendell Valentine | .5600 | 56 | 2001 | |
| 34. | Clifford Gilbert | .5595 | 90 | 2007 | |
| 35. | Arthur Shaeffer | .5559 | 368 | 2024 | |
| 36. | Paul Shapley | .5486 | 153 | 2023 | |
| 37. | Brian Prins | .5486 | 192 | 2010 | |
| 38. | Benjamin Gilliam | .5441 | 78 | 2025 | |
| 39. | William Landa | .5408 | 254 | 2024 | |
| 40. | Rick Nissen | .5405 | 206 | 2013 | |
| Kevin Dupuy | .5405 | 82 | 2003 | ||
| Ralph Pecora | .5405 | 42 | 2003 | ||
| 43. | Carlos Gatton | .5382 | 347 | 2011 | |
| 44. | Charles Hudkins | .5366 | 41 | 2025 | |
| 45. | Paul Maine | .5352 | 71 | 2022 | |
| 46. | Richard Berglund * | .5345 | 293 | 2007 | |
| 47. | Louis Whitehouse | .5341 | 93 | 2017 | |
| 48. | Jesus Bustos | .5337 | 193 | 2023 | |
| 49. | Derrick Miller | .5320 | 394 | 2025 | |
| 50. | Hyoushirou Hyotaru | .5294 | 75 | 2015 |
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