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| First Basemen Single-Season Homeruns Leaderboard | |
| * - Indicates Hall of Fame |
| Rank | Player | Homeruns | PA | Year | Career Leaderboard |
| 1. | Jimmie Davis * | 50 | 713 | 2001 | |
| 2. | Hal Rehm | 49 | 677 | 2018 | |
| 3. | John Gleaves | 48 | 659 | 2016 | |
| Ron Brenton | 48 | 704 | 2001 | ||
| Jimmie Davis * | 48 | 700 | 2000 | ||
| 6. | John Gleaves | 47 | 656 | 2014 | |
| 7. | Bick Horizon | 45 | 630 | 2011 | |
| 8. | Bick Horizon | 42 | 629 | 2010 | |
| 9. | Hank Carruthers | 41 | 665 | 2026 | |
| 10. | Chubby Arnette | 39 | 601 | 2028 | |
| Hal Rehm | 39 | 642 | 2015 | ||
| 12. | Hank Carruthers | 38 | 661 | 2029 | |
| John Gleaves | 38 | 646 | 2017 | ||
| 14. | Hal Rehm | 37 | 704 | 2019 | |
| John Gleaves | 37 | 507 | 2019 | ||
| Jason Wallin | 37 | 638 | 2014 | ||
| 17. | Mike King | 36 | 618 | 2018 | |
| 18. | Jarvis Holeman | 35 | 720 | 2014 | |
| Ron Brenton | 35 | 635 | 2005 | ||
| 20. | Leonardo De La Rosa | 34 | 663 | 2029 | |
| Jarvis Holeman | 34 | 712 | 2013 | ||
| Jason Wallin | 34 | 636 | 2012 | ||
| Johnny Carmona | 34 | 622 | 2012 | ||
| John Gleaves | 34 | 602 | 2011 | ||
| Johnny Carmona | 34 | 592 | 2011 | ||
| Johnny Carmona | 34 | 622 | 2010 | ||
| Leon Brouwer | 34 | 651 | 2005 | ||
| Ron Brenton | 34 | 643 | 2004 | ||
| Ron Brenton | 34 | 644 | 2002 | ||
| Jimmie Davis * | 34 | 641 | 2002 | ||
| 31. | Paul Sidgwick | 33 | 670 | 2028 | |
| Hank Carruthers | 33 | 648 | 2028 | ||
| Jeremy Vaz | 33 | 623 | 2020 | ||
| John Gleaves | 33 | 676 | 2018 | ||
| John Gleaves | 33 | 652 | 2015 | ||
| Bick Horizon | 33 | 626 | 2015 | ||
| Jarvis Holeman | 33 | 696 | 2011 | ||
| Bick Horizon | 33 | 611 | 2009 | ||
| Pat Galyon | 33 | 569 | 2006 | ||
| 40. | Leonardo De La Rosa | 32 | 659 | 2028 | |
| Luis Rodriguez | 32 | 647 | 2024 | ||
| Hal Rehm | 32 | 642 | 2014 | ||
| Hal Rehm | 32 | 666 | 2013 | ||
| Bick Horizon | 32 | 625 | 2012 | ||
| Albert Ortega | 32 | 519 | 2003 | ||
| Isaac Coulter | 32 | 547 | 2001 | ||
| Ron Brenton | 32 | 691 | 2000 | ||
| 48. | Paul Sidgwick | 31 | 647 | 2029 | |
| Bick Horizon | 31 | 629 | 2014 | ||
| John Gleaves | 31 | 637 | 2013 | ||
| Johnny Carmona | 31 | 633 | 2013 | ||
| John Gleaves | 31 | 570 | 2012 | ||
| Aragorn King * | 31 | 646 | 2011 | ||
| Aragorn King * | 31 | 631 | 2009 | ||
| Leon Brouwer | 31 | 608 | 2008 | ||
| Elmo Miles | 31 | 546 | 2001 | ||
| Ben Atencio | 31 | 585 | 2000 | ||
| 58. | Paul Sidgwick | 30 | 665 | 2022 | |
| John Gleaves | 30 | 630 | 2021 | ||
| Jarvis Holeman | 30 | 530 | 2015 | ||
| Jarvis Holeman | 30 | 637 | 2009 | ||
| Antonio Herrera | 30 | 638 | 2006 | ||
| Antonio Herrera | 30 | 635 | 2005 | ||
| Ben Perez | 30 | 617 | 2001 | ||
| 65. | Xever Sedillo | 29 | 648 | 2029 | |
| Chubby Arnette | 29 | 577 | 2027 | ||
| Jeremy Vaz | 29 | 619 | 2021 | ||
| Winston Pearl | 29 | 632 | 2020 | ||
| Jacks Nito | 29 | 621 | 2020 | ||
| Dean Chalmers | 29 | 629 | 2017 | ||
| Bick Horizon | 29 | 614 | 2013 | ||
| Dean Chalmers | 29 | 601 | 2013 | ||
| Jarvis Holeman | 29 | 622 | 2010 | ||
| Ron Brenton | 29 | 635 | 2008 | ||
| Ron Brenton | 29 | 655 | 2007 | ||
| Aragorn King * | 29 | 644 | 2007 | ||
| Aragorn King * | 29 | 646 | 2005 | ||
| 78. | Paul Sidgwick | 28 | 657 | 2025 | |
| Luis Rodriguez | 28 | 637 | 2021 | ||
| Mike King | 28 | 623 | 2021 | ||
| John Gleaves | 28 | 557 | 2020 | ||
| Jarvis Holeman | 28 | 644 | 2016 | ||
| Dean Chalmers | 28 | 633 | 2016 | ||
| Jacks Nito | 28 | 652 | 2015 | ||
| Aragorn King * | 28 | 636 | 2015 | ||
| Jarvis Holeman | 28 | 671 | 2012 | ||
| Leon Brouwer | 28 | 619 | 2009 | ||
| Antonio Herrera | 28 | 614 | 2007 | ||
| Ron Brenton | 28 | 654 | 2006 | ||
| Antonio Herrera | 28 | 610 | 2002 | ||
| Antonio Herrera | 28 | 655 | 2000 | ||
| 92. | Luis Rodriguez | 27 | 689 | 2028 | |
| William McCroskey | 27 | 681 | 2023 | ||
| Jerry Rivers | 27 | 612 | 2023 | ||
| John Ransom | 27 | 649 | 2022 | ||
| Mike King | 27 | 634 | 2022 | ||
| John Gleaves | 27 | 615 | 2022 | ||
| Jacks Nito | 27 | 635 | 2017 | ||
| Hal Rehm | 27 | 642 | 2016 | ||
| Aragorn King * | 27 | 666 | 2014 |
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