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| Career Post-Season Homeruns Allowed Leaderboard | |
| * - Indicates Hall of Fame Bold - Indicates active player |
| Rank | Player | Homeruns Allowed | IP | Years | Single Season Leaderboard |
| 1. | David Echegaray | 32 | 213.3 | 2004-2023 | |
| Ryan Turner * | 32 | 288.0 | 2002-2021 | ||
| 3. | Chad Schmidt | 30 | 224.0 | 2016-2029 | |
| 4. | Charles Lewandowski | 21 | 158.3 | 2019-2029 | |
| 5. | James Alexander | 20 | 146.3 | 2014-2024 | |
| Clarence McNatt * | 20 | 245.3 | 2003-2017 | ||
| 7. | Leonard Lubbers | 19 | 143.6 | 2003-2012 | |
| 8. | Artur Sax | 17 | 116.3 | 2016-2020 | |
| 9. | David Bonneau | 16 | 127.3 | 2024-2029 | |
| Skip Burns | 16 | 115.3 | 2010-2019 | ||
| Abraham Grayston | 16 | 105.7 | 2009-2019 | ||
| Aaron Bacon * | 16 | 113.6 | 2000-2011 | ||
| 13. | Joseph Smartt | 15 | 169.6 | 2002-2012 | |
| Joseph Bingman | 15 | 99.0 | 2003-2012 | ||
| 15. | Wayne Sorely | 14 | 77.3 | 2027-2029 | |
| Jose Langlois | 14 | 60.3 | 2006-2018 | ||
| Jeeves Vanhooten | 14 | 62.7 | 2000-2012 | ||
| 18. | Alex Ramirez | 13 | 89.3 | 2004-2014 | |
| 19. | Blitz Codd | 12 | 98.3 | 2023-2029 | |
| Christopher Millar | 12 | 90.0 | 2017-2029 | ||
| Humberto Deleon | 12 | 90.7 | 2014-2026 | ||
| Mark Trowers | 12 | 70.0 | 2017-2025 | ||
| Danny Day | 12 | 160.7 | 2016-2022 | ||
| Rafael Souza | 12 | 105.3 | 2004-2017 | ||
| 25. | Wilfredo Arroyo | 11 | 66.7 | 2027-2029 | |
| Powell Hoffman | 11 | 77.3 | 2023-2028 | ||
| Billy-Bob Suggs | 11 | 89.6 | 2007-2018 | ||
| Hugh Hoots | 11 | 96.3 | 2005-2016 | ||
| James Yim * | 11 | 124.0 | 2005-2012 | ||
| Dustin Carrasquillo | 11 | 89.7 | 2001-2009 | ||
| Mark Torrence | 11 | 54.0 | 2005-2009 | ||
| Armando Quinonez * | 11 | 101.7 | 2001-2006 | ||
| 33. | Paul Hall | 10 | 131.7 | 2023-2029 | |
| Ken Timperley | 10 | 36.7 | 2023-2029 | ||
| Manuel Nieves | 10 | 161.6 | 2021-2028 | ||
| Gary Simmons | 10 | 73.3 | 2022-2025 | ||
| Larry Burkholder | 10 | 80.0 | 2012-2023 | ||
| J.J. Cobb | 10 | 102.7 | 2011-2014 | ||
| Donte Dasilva | 10 | 54.3 | 2007-2013 | ||
| Jesus Aviles | 10 | 57.6 | 2003-2011 | ||
| Roger Morrison | 10 | 45.7 | 2004-2011 | ||
| Thomas Showers * | 10 | 82.3 | 2000-2009 | ||
| Malik Meng | 10 | 69.6 | 2000-2007 | ||
| Dmitrij Mitskevich | 10 | 86.3 | 2002-2005 | ||
| 45. | Dennis Couch | 9 | 79.7 | 2027-2029 | |
| Herbert Castillo | 9 | 59.3 | 2027-2029 | ||
| Aloisio Higuera | 9 | 64.6 | 2015-2026 | ||
| Ben Lamela | 9 | 263.0 | 2009-2022 | ||
| Art Toczek * | 9 | 92.0 | 2013-2022 | ||
| Scott Dutton | 9 | 68.3 | 2011-2020 |
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