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| Single-Season Homeruns Allowed Leaderboard | |
| * - Indicates Hall of Fame |
| Rank | Player | Homeruns Allowed | IP | Year | Career Leaderboard |
| 1. | Marvin Young | 46 | 244.7 | 2020 | |
| 2. | Britt Larosa | 45 | 195.7 | 2020 | |
| 3. | Mike Esposito | 44 | 204.7 | 2009 | |
| 4. | Joel Pineiro | 43 | 225.7 | 2005 | |
| 5. | Pedro Cuevas | 42 | 211.3 | 2015 | |
| Hong-Chih Kuo | 42 | 163.7 | 2015 | ||
| Dave Cedeno | 42 | 240.7 | 2014 | ||
| Jason Jennings | 42 | 241.0 | 2006 | ||
| John Lackey | 42 | 213.0 | 2005 | ||
| 10. | Jorge Ruiz | 41 | 204.7 | 2020 | |
| Thomas Gries | 41 | 211.0 | 2019 | ||
| Herman Yutzy | 41 | 202.3 | 2019 | ||
| Broderick Sutton | 41 | 194.7 | 2017 | ||
| Jorge Ruiz | 41 | 219.0 | 2016 | ||
| Tyler Pelland | 41 | 219.3 | 2010 | ||
| R.A. Dickey | 41 | 190.0 | 2005 | ||
| 17. | Fred McCree | 40 | 202.3 | 2022 | |
| Eloy Hooten | 40 | 198.3 | 2021 | ||
| Daniel Scott | 40 | 210.3 | 2020 | ||
| Matt Cain | 40 | 212.3 | 2016 | ||
| Seth McClung | 40 | 215.0 | 2009 | ||
| Chad Billingsley | 40 | 177.7 | 2009 | ||
| Cory Lidle | 40 | 198.7 | 2005 | ||
| Brett Myers | 40 | 168.0 | 2005 | ||
| 25. | Jorge Ruiz | 39 | 208.0 | 2022 | |
| Elliott Knowles | 39 | 200.3 | 2021 | ||
| Rich Harden | 39 | 159.3 | 2015 | ||
| Matt Desalvo | 39 | 188.0 | 2014 | ||
| Kyle Sleeth | 39 | 186.7 | 2014 | ||
| John Lackey | 39 | 224.3 | 2012 | ||
| Aldo Zubiaga | 39 | 208.3 | 2010 | ||
| Glendon Rusch | 39 | 230.7 | 2009 | ||
| Freddy Garcia | 39 | 206.7 | 2009 | ||
| Jeremy Bonderman | 39 | 190.7 | 2006 | ||
| 35. | Jonathan Ralph | 38 | 219.7 | 2021 | |
| Celestino Alvarez | 38 | 172.7 | 2020 | ||
| Jeremy Ronquillo | 38 | 170.7 | 2019 | ||
| Thomas Gries | 38 | 204.3 | 2015 | ||
| Matt Cain | 38 | 225.0 | 2010 | ||
| Sergio Silva | 38 | 163.7 | 2009 | ||
| Darrell May | 38 | 226.0 | 2005 | ||
| 42. | Condel Ortiz | 37 | 228.3 | 2022 | |
| Adam Muniz | 37 | 215.0 | 2022 | ||
| Marvin Young | 37 | 241.7 | 2021 | ||
| Jeremy Ronquillo | 37 | 220.0 | 2021 | ||
| Britt Larosa | 37 | 205.3 | 2021 | ||
| Tim Hudson | 37 | 226.3 | 2014 | ||
| William Depaz | 37 | 184.7 | 2013 | ||
| Chris Capuano | 37 | 190.3 | 2011 | ||
| Rich Harden | 37 | 178.7 | 2010 | ||
| Reginald Pastrana | 37 | 229.3 | 2009 | ||
| Tyler Clippard | 37 | 191.0 | 2008 | ||
| Jason Young | 37 | 183.3 | 2005 | ||
| 54. | Marvin Young | 36 | 212.3 | 2022 | |
| Billy Evans | 36 | 188.7 | 2022 | ||
| Condel Ortiz | 36 | 232.7 | 2021 | ||
| Tomas Sol | 36 | 181.7 | 2021 | ||
| Eloy Hooten | 36 | 215.7 | 2020 | ||
| Michael Rankin | 36 | 204.0 | 2020 | ||
| Isaias Villar | 36 | 183.3 | 2020 | ||
| George Jefferson | 36 | 193.7 | 2017 | ||
| Barry Zito | 36 | 216.7 | 2015 | ||
| Hong-Chih Kuo | 36 | 221.3 | 2014 | ||
| Jesse Foppert | 36 | 203.3 | 2012 | ||
| Ben Sheets | 36 | 205.0 | 2010 | ||
| Danny Haren | 36 | 234.0 | 2009 | ||
| Derek Lowe | 36 | 195.7 | 2009 | ||
| Travis Blackley | 36 | 222.0 | 2008 | ||
| Adam Eaton | 36 | 209.3 | 2008 | ||
| Kerry Wood | 36 | 206.0 | 2007 | ||
| Brad Radke | 36 | 241.3 | 2004 | ||
| 72. | Dudley Johnson | 35 | 196.7 | 2020 | |
| Jose Silas | 35 | 224.3 | 2019 | ||
| Paul Ferreri | 35 | 202.7 | 2018 | ||
| Josef Soliz | 35 | 216.7 | 2017 | ||
| Danny Haren | 35 | 175.3 | 2017 | ||
| Dave Cedeno | 35 | 233.7 | 2015 | ||
| Pablo Zabaleta | 35 | 196.3 | 2015 | ||
| Thomas Gries | 35 | 198.3 | 2013 | ||
| Ubaldo Jimenez | 35 | 237.0 | 2010 | ||
| Vince Perkins | 35 | 134.7 | 2010 | ||
| Pedro Barranco | 35 | 258.7 | 2009 | ||
| Gil Medina | 35 | 222.0 | 2009 | ||
| Brandon Webb | 35 | 220.7 | 2009 | ||
| Francisco Butto | 35 | 163.0 | 2007 | ||
| Chin-Hui Tsao | 35 | 193.7 | 2006 | ||
| Kerry Wood | 35 | 224.0 | 2004 | ||
| Woody Williams | 35 | 202.0 | 2004 | ||
| Jeff D'Amico | 35 | 193.7 | 2004 | ||
| Gil Meche | 35 | 159.0 | 2004 | ||
| 91. | Martin Straub | 34 | 231.3 | 2022 | |
| Jeffery Oliveros | 34 | 209.0 | 2022 | ||
| Robert Scott | 34 | 181.7 | 2021 | ||
| Martin Straub | 34 | 210.7 | 2020 | ||
| James Fenske | 34 | 208.7 | 2020 | ||
| Les Fegan | 34 | 211.0 | 2018 | ||
| Pedro Galindo | 34 | 199.7 | 2018 | ||
| Glen Rakestraw | 34 | 195.7 | 2018 | ||
| Kevin Henry | 34 | 187.0 | 2017 | ||
| Thomas Gries | 34 | 210.3 | 2016 |
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