First Basemen 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.    Billy Wilson .6954 675 1987  
2.    Randy Spratt .6808 686 1987  
3.    Joe Belinda .6506 583 1993  
4.    Billy Wilson .6490 661 1991  
5.    Randy Spratt .6398 618 1984  
6.    Billy Wilson .6335 605 1993  
7.    Billy Wilson .6256 688 1994  
8.    Billy Wilson .6248 687 1990  
9.    David Smurf .6243 645 1991  
10.    Terry Franciscen .6228 694 1987  
11.    Sal Damiano .6173 515 1987  
12.    Billy Wilson .6166 661 1989  
13.    Dave Manzanillo .6115 666 1987  
14.    Dick Allen .6078 681 1975  
15.    Jason Bilford .6055 651 1983  
16.    Joe Belinda .6055 594 1990  
17.    Dave Manzanillo .6039 598 1991  
18.    Lou Collins .6030 704 1973  
19.    Jack Kelly .5957 659 1973  
20.    Jimmy Dugan .5941 543 1992  
21.    Randy Spratt .5910 659 1983  
22.    Flavio Luna .5892 645 1994  
23.    Fred Mahaffey .5891 678 1986  
24.    Fred Mahaffey .5884 660 1987  
25.    Flavio Luna .5881 661 1991  
26.    Dave Manzanillo .5872 678 1992  
27.    Randy Spratt .5835 655 1986  
28.    Ted Sale .5810 645 1993  
29.    Jed Johnson .5806 640 1989  
30.    Randy Spratt .5800 657 1989  
31.    Randy Spratt .5727 638 1985  
32.    Red Leinenkugel .5706 572 1993  
33.    Joe Belinda .5702 609 1994  
34.    Flavio Luna .5699 637 1989  
35.    Ted Sale .5683 527 1992  
36.    Randy Spratt .5678 646 1981  
37.    Billy Wilson .5677 647 1992  
38.    James Jordan .5673 569 1973  
39.    Joe Belinda .5669 649 1991  
40.    Stephen Shier .5664 625 1988  
41.    Zachary Johnson .5658 656 1975  
42.    Rod Carew .5646 646 1978  
43.    Jimmy Dugan .5643 658 1987  
44.    Dave Manzanillo .5642 653 1990  
45.    Bombo Vadabonceour * .5627 663 1977  
46.    Bombo Vadabonceour * .5619 675 1979  
47.    Dhani Yetnikoff .5616 698 1973  
48.    Fred Mahaffey .5615 661 1983  
49.    Bombo Vadabonceour * .5610 663 1980  
50.    Dave Manzanillo .5606 632 1994  
51.    Mickey Masutto .5601 660 1976  
52.    Randy Spratt .5573 657 1990  
53.    David Smurf .5569 652 1993  
54.    Rick Habin .5567 709 1973  
55.    Jason Bilford .5556 674 1986  
56.    David Smurf .5533 642 1994  
57.    Ted Sale .5532 665 1991  
58.    Phil Millbauer .5519 678 1973  
59.    Terry Franciscen .5505 554 1994  
60.    Fred Mahaffey .5495 680 1990  
61.    Fred Mahaffey .5492 598 1980  
62.    Clue Heywood .5480 613 1977  
63.    Zachary Johnson .5473 709 1973  
64.    Red Leinenkugel .5467 562 1991  
65.    Zachary Johnson .5462 617 1976  
66.    Fred Mahaffey .5456 646 1984  
67.    Rick Leach .5453 585 1986  
68.    Stephen Shier .5447 651 1990  
69.    Jimmy Dugan .5429 633 1994  
70.    Ted Sale .5425 679 1987  
71.    Jake Taylor .5423 666 1975  
72.    Jimmy Dugan .5417 653 1990  
73.    Jed Johnson .5405 604 1991  
74.    Rick Habin .5396 671 1977  
75.    Steve Kemp .5393 654 1987  
76.    Rick Leach .5388 556 1987  
77.    Dave Manzanillo .5383 668 1989  
78.    Jason Bilford .5382 625 1985  
79.    Billy Wilson .5373 668 1986  
80.    Dave Manzanillo .5370 648 1993  
81.    Bombo Vadabonceour * .5359 651 1984  
82.    Flavio Luna .5348 670 1992  
83.    Nolan Berran .5347 623 1986  
84.    Mickey Masutto .5342 641 1974  
85.    Terry Franciscen .5336 648 1990  
86.    Mickey Masutto .5327 511 1980  
87.    Rick Habin .5324 677 1974  
88.    Stephen Shier .5320 621 1989  
89.    Nolan Berran .5317 662 1987  
90.    Al Dicken .5309 530 1983  
91.    Ted Sale .5307 652 1994  
92.    Stephen Shier .5306 601 1980  
93.    Jason Bilford .5305 676 1981  
94.    Zachary Johnson .5302 651 1974  
95.    Justin Smith .5302 561 1990  
  Dave Manzanillo .5302 600 1988  
97.    Jason Bilford .5296 652 1980  
98.    Jack Kelly .5292 647 1976  
99.    Brandon Pearce .5282 572 1980  
100.    Joe Belinda .5280 603 1992