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| Single-Season OAVG Leaderboard | |
| * - Indicates Hall of Fame |
| Rank | Player | OAVG | IP | Year | Career Leaderboard |
| 1. | James Yim * | .1401 | 291.7 | 2008 | |
| 2. | James Yim * | .1436 | 271.0 | 2011 | |
| 3. | Clarence McNatt * | .1475 | 283.3 | 2008 | |
| 4. | David Echegaray | .1552 | 280.0 | 2015 | |
| 5. | Ryan Turner * | .1552 | 296.7 | 2006 | |
| 6. | Aaron Bacon * | .1584 | 336.3 | 2005 | |
| 7. | Aaron Bacon * | .1587 | 242.7 | 2001 | |
| 8. | James Yim * | .1599 | 304.0 | 2007 | |
| 9. | James Yim * | .1620 | 243.7 | 2005 | |
| 10. | Ryan Turner * | .1623 | 287.0 | 2004 | |
| 11. | David Echegaray | .1628 | 259.0 | 2014 | |
| 12. | James Yim * | .1656 | 271.7 | 2010 | |
| 13. | David Echegaray | .1657 | 246.3 | 2016 | |
| 14. | Max Guerra | .1667 | 188.3 | 2015 | |
| 15. | David Echegaray | .1669 | 227.0 | 2017 | |
| 16. | Ryan Turner * | .1670 | 272.3 | 2003 | |
| 17. | Randall Spates | .1680 | 293.7 | 2010 | |
| 18. | Ryan Turner * | .1692 | 285.0 | 2009 | |
| 19. | James Yim * | .1693 | 251.3 | 2013 | |
| 20. | James Yim * | .1697 | 236.3 | 2004 | |
| 21. | Ferdinand Lueras | .1698 | 212.3 | 2001 | |
| 22. | James Yim * | .1698 | 195.7 | 2006 | |
| 23. | Joseph Smartt | .1708 | 228.7 | 2003 | |
| 24. | James Yim * | .1708 | 252.3 | 2016 | |
| 25. | James Yim * | .1708 | 297.7 | 2009 | |
| 26. | James Yim * | .1711 | 259.7 | 2012 | |
| 27. | Ryan Turner * | .1714 | 275.7 | 2007 | |
| 28. | Allen Sampley | .1717 | 210.3 | 2013 | |
| 29. | Robert Garza * | .1725 | 218.7 | 2011 | |
| 30. | Clarence McNatt * | .1731 | 225.7 | 2014 | |
| 31. | Chad Schmidt | .1735 | 227.7 | 2022 | |
| 32. | David Echegaray | .1742 | 244.0 | 2012 | |
| 33. | J.J. Cobb | .1745 | 242.7 | 2004 | |
| 34. | David Echegaray | .1749 | 280.3 | 2013 | |
| 35. | William Tinoco | .1754 | 241.7 | 2022 | |
| 36. | Galon Thrace | .1761 | 252.3 | 2017 | |
| 37. | Clarence McNatt * | .1766 | 223.0 | 2011 | |
| 38. | Ryan Turner * | .1767 | 243.7 | 2002 | |
| 39. | Ben Lamela | .1772 | 240.3 | 2014 | |
| 40. | David Echegaray | .1773 | 222.7 | 2011 | |
| 41. | Aaron Bacon * | .1773 | 331.0 | 2004 | |
| 42. | Ryan Turner * | .1773 | 250.7 | 2014 | |
| 43. | Jose Langlois | .1776 | 210.0 | 2011 | |
| 44. | James Yim * | .1780 | 266.7 | 2015 | |
| 45. | Dirk Carr | .1782 | 212.0 | 2013 | |
| 46. | Steven Williams * | .1790 | 270.7 | 2009 | |
| 47. | Edgardo Castillo * | .1793 | 281.7 | 2004 | |
| 48. | Edgardo Castillo * | .1794 | 227.3 | 2011 | |
| 49. | Todd Neary | .1795 | 236.3 | 2026 | |
| 50. | Skip Burns | .1802 | 254.7 | 2008 | |
| 51. | Dirk Carr | .1804 | 208.0 | 2017 | |
| 52. | Aaron Bacon * | .1806 | 267.3 | 2006 | |
| 53. | Daniel Henry | .1807 | 205.7 | 2016 | |
| 54. | William Roberts | .1808 | 227.3 | 2017 | |
| 55. | Kevin Smith | .1810 | 272.0 | 2025 | |
| 56. | Kevin Smith | .1811 | 298.0 | 2028 | |
| 57. | J.J. Cobb | .1811 | 225.0 | 2014 | |
| 58. | Xavier Josephs | .1813 | 215.0 | 2013 | |
| 59. | Jose Langlois | .1822 | 201.0 | 2007 | |
| 60. | Jose Langlois | .1828 | 196.0 | 2016 | |
| 61. | James Yim * | .1829 | 252.7 | 2014 | |
| 62. | James Yim * | .1831 | 257.3 | 2017 | |
| 63. | Robert Garza * | .1834 | 206.7 | 2012 | |
| 64. | Skip Burns | .1836 | 264.0 | 2007 | |
| 65. | Robert Garza * | .1838 | 238.7 | 2010 | |
| 66. | Robert Garza * | .1839 | 199.3 | 2014 | |
| 67. | Ryan Turner * | .1841 | 271.7 | 2008 | |
| 68. | Danny Day | .1843 | 231.7 | 2021 | |
| 69. | Edgardo Castillo * | .1846 | 227.3 | 2012 | |
| 70. | James Yim * | .1850 | 215.0 | 2018 | |
| 71. | Jose Langlois | .1852 | 224.0 | 2010 | |
| 72. | Ben Lamela | .1853 | 209.0 | 2019 | |
| 73. | Jose Langlois | .1856 | 199.7 | 2015 | |
| 74. | Jamie Agee | .1857 | 244.0 | 2016 | |
| 75. | James Alexander | .1858 | 250.3 | 2016 | |
| 76. | Edgardo Castillo * | .1858 | 186.7 | 2016 | |
| 77. | David Echegaray | .1861 | 242.7 | 2021 | |
| 78. | Cougar Koon | .1861 | 192.0 | 2027 | |
| 79. | Jose Langlois | .1864 | 230.3 | 2005 | |
| 80. | Dirk Carr | .1866 | 207.3 | 2008 | |
| 81. | David Echegaray | .1868 | 188.3 | 2010 | |
| 82. | Russell Hults | .1872 | 225.3 | 2016 | |
| 83. | Aaron Bacon * | .1873 | 233.0 | 2000 | |
| 84. | Todd Neary | .1874 | 168.7 | 2022 | |
| 85. | Ramon Cordova | .1874 | 192.0 | 2017 | |
| 86. | Armando Quinonez * | .1876 | 256.7 | 2003 | |
| 87. | Aaron Bacon * | .1878 | 288.3 | 2007 | |
| 88. | Xalbador Laguna | .1878 | 226.3 | 2028 | |
| 89. | Jose Langlois | .1879 | 211.7 | 2012 | |
| 90. | Skip Burns | .1880 | 193.7 | 2017 | |
| 91. | Jose Langlois | .1882 | 226.0 | 2009 | |
| 92. | Edgardo Castillo * | .1884 | 258.0 | 2005 | |
| 93. | David Evans | .1885 | 219.0 | 2004 | |
| 94. | Skip Burns | .1885 | 225.0 | 2012 | |
| 95. | Edgardo Castillo * | .1886 | 263.3 | 2007 | |
| 96. | Clarence McNatt * | .1888 | 226.3 | 2012 | |
| 97. | Scott Bartell | .1888 | 289.0 | 2009 | |
| 98. | Jamie Agee | .1889 | 215.0 | 2014 | |
| 99. | Emerson East | .1891 | 190.7 | 2014 | |
| 100. | Fred Washington | .1892 | 210.3 | 2015 |
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