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 Career Leaderboard
1.    Long Chamberlain .7864 678 1986  
2.    Sawyer Silk .7268 692 1987  
3.    Frank Boerner .7066 598 1987  
4.    Long Chamberlain .6998 656 1987  
5.    Dave Winfield .6988 646 1986  
6.    Billy Wilson .6954 675 1987  
7.    Vince Milani .6905 509 1975  
8.    Sawyer Silk .6887 670 1988  
9.    Amos Moses South .6883 510 1986  
10.    Morris Pennebaker .6862 648 1991  
11.    Randy Spratt .6808 686 1987  
12.    John Bockus .6744 690 1987  
13.    Long Chamberlain .6667 662 1985  
14.    Morris Pennebaker .6622 656 1992  
15.    Vince Milani .6599+ 498 1979  
16.    Davis Birch .6577 505 1986  
17.    Henry Jones .6564 657 1990  
18.    Joe Belinda .6506 583 1993  
19.    Billy Wilson .6490 661 1991  
20.    Bolt Vanderhugen .6477 665 1994  
21.    Archie Ayrault .6455 581 1987  
22.    Sawyer Silk .6400 679 1986  
23.    Randy Spratt .6398 618 1984  
24.    Kevin Haubert .6383 659 1987  
25.    Sawyer Silk .6340 674 1990  
26.    Billy Wilson .6335 605 1993  
27.    Billy Wilson .6256 688 1994  
28.    Billy Wilson .6248 687 1990  
29.    Sawyer Silk .6248 629 1985  
30.    David Smurf .6243 645 1991  
31.    Johnny Fever .6240 639 1986  
32.    Donnie Rotten .6239 660 1986  
33.    John Bockus .6231 672 1986  
34.    Joe Gillstrom * .6229 674 1974  
35.    Terry Franciscen .6228 694 1987  
36.    Henry Jones .6211 657 1992  
37.    Steve Collins .6211 667 1989  
38.    Frank Boerner .6202 678 1986  
39.    Robert Roten .6184 521 1977  
40.    Sal Damiano .6173 515 1987  
  Walter Wambold .6173 634 1974  
42.    Billy Wilson .6166 661 1989  
43.    Sawyer Silk .6151 664 1989  
44.    Henry Jones .6146 632 1987  
45.    Xavier Jonah .6145 631 1986  
46.    Dave Winfield .6141 663 1987  
47.    Dave Manzanillo .6115 666 1987  
48.    Dick Allen .6078 681 1975  
49.    Long Chamberlain .6076 649 1984  
50.    John Bockus .6075 664 1982  
51.    Walter Browne .6073 700 1973  
52.    Doug Gwosdz .6067 608 1987  
53.    Ramon Echague .6064 682 1994  
54.    Henry Jones .6061 666 1986  
55.    Jason Bilford .6055 651 1983  
56.    Joe Belinda .6055 594 1990  
57.    Morris Pennebaker .6050 647 1993  
58.    Frank Grant .6043 670 1990  
59.    Dave Manzanillo .6039 598 1991  
60.    Lou Collins .6030 704 1973  
61.    Jack Hanski * .6028 624 1986  
62.    Long Chamberlain .6027+ 500 1991  
63.    Gary Barr .6026 669 1993  
64.    John Bockus .6024 580 1985  
65.    Joe Gillstrom * .6004 630 1975  
66.    Sue Callas .6000 534 1987  
67.    Stephen Sax .5987 539 1989  
68.    Kevin Haubert .5985 642 1986  
69.    Rube Baker .5984 565 1973  
70.    Steve Collins .5960 674 1986  
71.    Jack Kelly .5957 659 1973  
72.    Kevin Haubert .5945 638 1988  
73.    Jimmy Dugan .5941 543 1992  
74.    Sam Hell * .5930 629 1979  
75.    Jack Hanski * .5921 661 1987  
76.    Washu Hakubi .5916 602 1994  
77.    Randy Spratt .5910 659 1983  
78.    Steve Clockmer .5900 658 1973  
79.    Flavio Luna .5892 645 1994  
80.    Fred Mahaffey .5891 678 1986  
81.    Morris Pennebaker .5890 655 1994  
82.    Adrian Cabrera .5889+ 498 1990  
83.    Xavier Jonah .5886 617 1983  
84.    Fred Mahaffey .5884 660 1987  
85.    Donnie Rotten .5884 567 1992  
86.    Flavio Luna .5881 661 1991  
87.    Floyd Jackson .5880 654 1974  
88.    Dave Manzanillo .5872 678 1992  
89.    Donnie Rotten .5872 508 1987  
90.    John Bockus .5866 667 1988  
91.    Clemente Serrano .5864 686 1992  
92.    Frank Boerner .5863 677 1991  
93.    Clyde Porter .5858 578 1975  
94.    Rube Baker .5854 611 1978  
95.    Archie Ayrault .5851 659 1986  
96.    Vince Milani .5843 660 1973  
97.    Henry Jones .5838 606 1988  
  Vince Milani .5838 571 1978  
99.    Randy Spratt .5835 655 1986  
100.    John Bockus .5835 670 1990