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| Single-Season Slugging Pct Leaderboard | |
| * - Indicates Hall of Fame
+ - indicates hit-less at-bats added to meet 502PA requirement. |
| Rank | Player | Slugging Pct | PA | Year | |
| 1. | Dave Orr | .5079 | 675 | 1884 | |
| 2. | Abner Dalrymple | .4696 | 595 | 1884 | |
| 3. | Dan Brouthers | .4650 | 650 | 1884 | |
| 4. | Paul Hines | .4498 | 656 | 1884 | |
| 5. | Jack Rowe | .4477 | 587 | 1884 | |
| 6. | Oyster Burns | .4464 | 627 | 1884 | |
| 7. | Roger Connor | .4387 | 536 | 1884 | |
| 8. | King Kelly | .4351 | 649 | 1884 | |
| 9. | Fred Mann | .4324 | 567 | 1884 | |
| 10. | John Reilly | .4283 | 665 | 1884 | |
| 11. | Pete Hotaling | .4280 | 556 | 1884 | |
| 12. | Henry Larkin | .4211 | 650 | 1884 | |
| 13. | Pete Browning | .4200 | 661 | 1884 | |
| 14. | Podge Weihe | .4192 | 616 | 1884 | |
| 15. | Jack Glasscock | .4094 | 688 | 1884 | |
| 16. | Tommy McCarthy | .4075 | 617 | 1884 | |
| 17. | Fred Dunlap | .4051 | 630 | 1884 | |
| 18. | Jimmy Wolf | .4007 | 630 | 1884 | |
| 19. | Harry Stovey | .3986 | 649 | 1884 | |
| 20. | Joe Quinn | .3942 | 656 | 1884 | |
| 21. | Bid McPhee | .3894 | 610 | 1884 | |
| 22. | Harry Moore | .3885 | 572 | 1884 | |
| 23. | John O'Rourke | .3866 | 620 | 1884 | |
| 24. | Sam Wise | .3852 | 607 | 1884 | |
| 25. | Ezra Sutton | .3746 | 634 | 1884 | |
| 26. | Juice Latham | .3724+ | 478 | 1884 | |
| 27. | Fred Lewis | .3722 | 669 | 1884 | |
| 28. | Ed Swartwood | .3722 | 642 | 1884 | |
| 29. | Mike Dorgan | .3687 | 610 | 1884 | |
| 30. | Dude Esterbrook | .3675 | 604 | 1884 | |
| 31. | Buck Ewing | .3671 | 639 | 1884 | |
| 32. | Billy O'Brien | .3670 | 608 | 1884 | |
| 33. | George Gore | .3668 | 710 | 1884 | |
| 34. | Tom Brown | .3658+ | 458 | 1884 | |
| 35. | Charlie Bennett | .3650 | 593 | 1884 | |
| 36. | Tom York | .3647 | 554 | 1884 | |
| 37. | Jerrie Moore | .3615 | 540 | 1884 | |
| 38. | Arlie Latham | .3611 | 571 | 1884 | |
| 39. | John Clapp | .3610 | 642 | 1884 | |
| 40. | Cap Anson | .3602 | 681 | 1884 | |
| 41. | Buttercup Dickerson | .3594 | 604 | 1884 | |
| 42. | Jack Manning | .3552 | 534 | 1884 | |
| 43. | Jumbo Davis | .3541 | 519 | 1884 | |
| 44. | Fred Carroll | .3541 | 532 | 1884 | |
| 45. | Dennis Casey | .3499+ | 483 | 1884 | |
| 46. | Dasher Troy | .3494 | 553 | 1884 | |
| 47. | Jim O'Rourke | .3467 | 652 | 1884 | |
| 48. | Jerry Denny | .3454 | 642 | 1884 | |
| 49. | Pete Gillespie | .3449 | 646 | 1884 | |
| 50. | Sy Sutcliffe | .3421+ | 490 | 1884 | |
| 51. | Fleet Walker | .3419 | 524 | 1884 | |
| 52. | Martin Powell | .3400 | 650 | 1884 | |
| 53. | George Pinkney | .3383 | 656 | 1884 | |
| 54. | Chippy McGarr | .3375 | 586 | 1884 | |
| 55. | Piggy Ward | .3358 | 645 | 1884 | |
| 56. | Tom Mansell | .3351 | 606 | 1884 | |
| 57. | Charley Jones | .3333 | 585 | 1884 | |
| 58. | John Peters | .3306 | 634 | 1884 | |
| 59. | Jim Fogarty | .3306 | 533 | 1884 | |
| 60. | Pop Corkhill | .3284 | 636 | 1884 | |
| 61. | Gat Stires | .3277+ | 477 | 1884 | |
| 62. | Steve Bellan | .3262 | 530 | 1884 | |
| 63. | Joe Farrell | .3244 | 618 | 1884 | |
| 64. | Jim Tipper | .3242+ | 484 | 1884 | |
| 65. | Cliff Carroll | .3238 | 656 | 1884 | |
| 66. | Dave Rowe | .3238 | 505 | 1884 | |
| 67. | Frank McLaughlin | .3230+ | 495 | 1884 | |
| 68. | Blondie Purcell | .3229 | 608 | 1884 | |
| 69. | Mike Moynahan | .3215+ | 469 | 1884 | |
| 70. | Mike McGeary | .3211+ | 401 | 1884 | |
| 71. | Chief Roseman | .3209 | 611 | 1884 | |
| 72. | George Wright | .3190 | 606 | 1884 | |
| 73. | Joe Sommer | .3155 | 559 | 1884 | |
| 74. | George Wood | .3137 | 682 | 1884 | |
| 75. | Mike Muldoon | .3137 | 544 | 1884 | |
| 76. | Ed Miller | .3135 | 562 | 1884 | |
| 77. | John Morrill | .3130 | 653 | 1884 | |
| 78. | Frank Fennelly | .3111 | 642 | 1884 | |
| 79. | Sadie Houck | .3111+ | 480 | 1884 | |
| 80. | Candy Nelson | .3108 | 696 | 1884 | |
| 81. | Jim Clinton | .3105 | 643 | 1884 | |
| 82. | Tom Lynch | .3096+ | 412 | 1884 | |
| 83. | Elmer Cleveland | .3088+ | 453 | 1884 | |
| 84. | Jackie Hayes | .3075+ | 485 | 1884 | |
| 85. | Jack Farrell | .3050 | 657 | 1884 | |
| 86. | John O'Brien | .3048 | 552 | 1884 | |
| 87. | Charlie Comiskey | .3031 | 553 | 1884 | |
| 88. | Arthur Irwin | .3014 | 606 | 1884 | |
| 89. | Ecky Stearns | .3011+ | 476 | 1884 | |
| 90. | Jim Tray | .2979 | 559 | 1884 | |
| 91. | Paul Radford | .2971 | 667 | 1884 | |
| 92. | Hick Carpenter | .2954 | 709 | 1884 | |
| 93. | Deacon White | .2927 | 530 | 1884 | |
| 94. | Ed Andrews | .2921 | 557 | 1884 | |
| 95. | Jack Leary | .2889+ | 483 | 1884 | |
| 96. | Charlie Ganzel | .2881 | 504 | 1884 | |
| 97. | Doggie Miller | .2842+ | 416 | 1884 | |
| 98. | Fraley Rogers | .2827 | 604 | 1884 | |
| 99. | Jack Leary | .2810+ | 477 | 1884 | |
| 100. | Count Sensenderfer | .2798 | 516 | 1884 |
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