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| Career OOPS Leaderboard | |
| * - Indicates Hall of Fame Bold - Indicates active player |
| Rank | Player | OOPS | IP | Years | Single Season Leaderboard |
| 1. | James Yim * | .5046 | 4445.9 | 2003-2021 | |
| 2. | Kevin Smith | .5387 | 2599.0 | 2019-2029 | |
| 3. | Edgardo Castillo * | .5441 | 3758.6 | 2001-2018 | |
| 4. | Allen Sampley | .5554 | 1702.3 | 2007-2021 | |
| 5. | Clarence McNatt * | .5562 | 2894.0 | 2003-2017 | |
| 6. | Aaron Bacon * | .5624 | 3356.0 | 2000-2012 | |
| 7. | Ryan Turner * | .5635 | 3744.9 | 2001-2021 | |
| 8. | J.L. Carrillo | .5674 | 1629.3 | 2018-2026 | |
| 9. | Chad Schmidt | .5674 | 3346.6 | 2015-2029 | |
| 10. | Ben Lamela | .5697 | 3342.6 | 2008-2025 | |
| 11. | Art Toczek * | .5698 | 2240.3 | 2011-2023 | |
| 12. | Leo Cleland * | .5716 | 2815.6 | 2004-2017 | |
| 13. | Richard San Juan | .5720 | 3143.3 | 2017-2029 | |
| 14. | Robert Garza * | .5731 | 2458.6 | 2004-2015 | |
| 15. | Hugo Holt * | .5733 | 1108.3 | 2006-2021 | |
| 16. | Todd Neary | .5784 | 2286.6 | 2019-2029 | |
| 17. | Donald Granger * | .5812 | 1025.0 | 2003-2017 | |
| 18. | Alfonso Font | .5831 | 1275.3 | 2015-2029 | |
| 19. | Lowell Stang * | .5836 | 2987.9 | 2007-2021 | |
| 20. | Russell Henikar | .5866 | 1004.3 | 2009-2024 | |
| 21. | David Echegaray | .5934 | 4812.6 | 2003-2026 | |
| 22. | Deangelo Ramos * | .5941 | 1166.3 | 2003-2020 | |
| 23. | Amadeo Villerreal | .5948 | 1712.0 | 2018-2026 | |
| 24. | Larry Burkholder | .5958 | 1105.0 | 2011-2024 | |
| 25. | David Evans | .5965 | 1412.3 | 2000-2006 | |
| 26. | Tyler Lattimore | .6000 | 1073.3 | 2014-2029 | |
| 27. | Joseph Seybert | .6009 | 1290.0 | 2000-2005 | |
| 28. | Scott Bartell | .6010 | 4101.3 | 2003-2021 | |
| 29. | Billy-Bob Suggs | .6024 | 1588.3 | 2003-2021 | |
| 30. | Cougar Koon | .6068 | 1093.6 | 2020-2029 | |
| 31. | Roderigo Pequero | .6083 | 2668.6 | 2018-2029 | |
| 32. | Kenneth Krahn | .6099 | 1711.6 | 2005-2013 | |
| 33. | Ralph Ives | .6103 | 2623.6 | 2018-2029 | |
| 34. | Armando Mesta | .6109 | 1366.7 | 2023-2029 | |
| 35. | William Roberts | .6128 | 2103.6 | 2008-2021 | |
| 36. | Jack Fasano | .6137 | 1053.7 | 2000-2005 | |
| 37. | Luis Alou | .6146 | 1429.6 | 2014-2028 | |
| 38. | Blaine Titsworth | .6151 | 1930.6 | 2000-2009 | |
| 39. | Wilfredo Arroyo | .6153 | 1658.6 | 2023-2029 | |
| 40. | Vern Taylor | .6172 | 1191.0 | 2008-2022 | |
| 41. | Darryl Leekong | .6178 | 1186.9 | 2011-2026 | |
| 42. | Osvaldo Pedraza | .6185 | 3311.0 | 2003-2017 | |
| 43. | Mark Trowers | .6192 | 3535.9 | 2010-2025 | |
| 44. | George Aybar | .6192 | 2359.3 | 2007-2019 | |
| 45. | Leonard Lubbers | .6199 | 2356.6 | 2003-2013 | |
| 46. | Rusty Skittles | .6200 | 2706.3 | 2007-2020 | |
| 47. | J.J. Cobb | .6201 | 3210.6 | 2000-2014 | |
| 48. | Jose Castillo | .6204 | 1010.0 | 2008-2014 | |
| 49. | Armando Quinonez * | .6205 | 1638.6 | 2000-2007 | |
| 50. | Manuel Nieves | .6206 | 2186.3 | 2020-2029 | |
| 51. | Tobias Escobar | .6210 | 2817.9 | 2006-2019 | |
| 52. | Xalbador Laguna | .6223 | 2146.0 | 2019-2029 | |
| 53. | Wayne Sorely | .6225 | 1648.0 | 2021-2029 | |
| 54. | Jonathan Alexander | .6233 | 2154.6 | 2019-2029 | |
| 55. | Dan Coningsby | .6245 | 1388.0 | 2023-2029 | |
| 56. | Thomas Showers * | .6251 | 3348.0 | 2000-2013 | |
| 57. | Shiro Ogusuku | .6257 | 1014.7 | 2025-2029 | |
| 58. | Geoff Stagner | .6261 | 2609.0 | 2011-2025 | |
| 59. | William Tinoco | .6278 | 1597.3 | 2019-2029 | |
| 60. | Hugh Hoots | .6280 | 3766.6 | 2002-2018 | |
| 61. | Dennis Wright * | .6280 | 3380.6 | 2001-2014 | |
| 62. | Harry Swint | .6286 | 1377.0 | 2000-2005 | |
| 63. | Melvin Bohrer | .6287 | 1971.3 | 2011-2024 | |
| 64. | Joseph Smartt | .6292 | 2503.3 | 2002-2014 | |
| 65. | Donte Dasilva | .6298 | 3018.0 | 2003-2017 | |
| 66. | Willie Wilson | .6308 | 1936.6 | 2017-2029 | |
| 67. | Ramon Cordova | .6311 | 2756.6 | 2017-2029 | |
| 68. | James Alexander | .6312 | 2806.6 | 2011-2026 | |
| 69. | Samson Steele * | .6313 | 2596.0 | 2000-2011 | |
| 70. | Mark Torrence | .6316 | 2896.3 | 2002-2015 | |
| 71. | Henrique Reynoso | .6318 | 1564.3 | 2011-2027 | |
| 72. | Ty Mercury | .6323 | 1499.0 | 2008-2016 | |
| 73. | Kyle Nunn | .6324 | 2003.6 | 2006-2021 | |
| 74. | David Bonneau | .6335 | 1427.3 | 2021-2029 | |
| 75. | Adam Burton | .6337 | 2164.9 | 2009-2022 | |
| 76. | Dennis Morelock * | .6339 | 4013.6 | 2003-2017 | |
| 77. | Pete Leighburn | .6340 | 1550.7 | 2023-2029 | |
| 78. | Pedro Ceasar | .6347 | 1160.6 | 2000-2009 | |
| 79. | Benny Suarez | .6351 | 2730.9 | 2016-2029 | |
| 80. | Danny Day | .6352 | 2527.6 | 2014-2026 | |
| 81. | Stuart Whyte | .6352 | 2143.3 | 2011-2022 | |
| 82. | Robby Butler | .6363 | 1374.3 | 2000-2007 | |
| 83. | Benicio Andaverde | .6381 | 2653.3 | 2016-2029 | |
| 84. | Jamie Agee | .6394 | 3207.3 | 2005-2021 | |
| 85. | Claudio Romeo | .6396 | 1774.3 | 2000-2008 | |
| 86. | John Demar | .6400 | 1057.0 | 2000-2006 | |
| 87. | Linwood Judy | .6405 | 1054.3 | 2004-2017 | |
| 88. | James Glasper | .6410 | 1487.6 | 2016-2025 | |
| 89. | David Scoggin | .6421 | 1654.6 | 2000-2011 | |
| 90. | Jose Langlois | .6422 | 3377.9 | 2004-2020 | |
| 91. | Jack Pinkston | .6423 | 1175.9 | 2016-2029 | |
| 92. | Chris Curcio | .6426 | 1235.3 | 2009-2016 | |
| 93. | Jacob Perl | .6429 | 2679.6 | 2016-2029 | |
| 94. | Christopher Millar | .6431 | 2633.3 | 2014-2029 | |
| 95. | Andrew Albury | .6439 | 2407.3 | 2001-2014 | |
| 96. | Rafael Souza | .6441 | 2287.6 | 2003-2022 | |
| 97. | Leandro Aranda | .6445 | 1055.3 | 2000-2010 | |
| 98. | Francisco Apodaca | .6461 | 1344.3 | 2002-2017 | |
| 99. | Edward Goffe | .6464 | 1555.0 | 2009-2018 | |
| 100. | Paul Hall | .6466 | 2664.0 | 2018-2029 |
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