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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Postseason Career Leaderboard |
|---|---|---|---|---|
| 1 | Bobby Barrell* | 1.2308 | 1945 | |
| 2 | Lorenzo Samuels | 1.0000 | 1953 | |
| 2 | Cotton Dillon | 1.0000 | 1947 | |
| 4 | Hank Williams# | .9667 | 1958 | |
| 5 | Ken Newman# | .9545 | 1958 | |
| 6 | Art Panko | .9500 | 1922 | |
| 7 | Fred McCormick* | .9444 | 1940 | |
| 8 | Glenn Morrison | .9412 | 1923 | |
| 9 | Edwin Hackberry# | .9032 | 1958 | |
| 10 | Mahlon Strong | .8636 | 1935 | |
| 11 | Joe Carney | .8500 | 1893 | |
| 12 | Charlie Barry | .8333 | 1934 | |
| 12 | Jim Urquhart# | .8333 | 1957 | |
| 14 | Chuck Adams | .8182 | 1944 | |
| 15 | Jack Welch | .8095 | 1952 | |
| 16 | Joe Casey | .8077 | 1905 | |
| 17 | Sam Sanderson | .7895 | 1916 | |
| 18 | Jimmy Whipple | .7857 | 1907 | |
| 18 | Bill Craigen* | .7857 | 1905 | |
| 20 | George Williams | .7826 | 1894 | |
| 20 | Paul Bailey | .7826 | 1925 | |
| 22 | T.R. Goins* | .7778 | 1923 | |
| 23 | Max Morris* | .7742 | 1934 | |
| 24 | John Matyas | .7727 | 1905 | |
| 25 | Nate Toth | .7647 | 1905 | |
| 26 | Frank Rhinehart | .7619 | 1900 | |
| 27 | David Merchant | .7586 | 1930 | |
| 27 | Bobby Barrell* | .7586 | 1933 | |
| 29 | Bill Craigen* | .7500 | 1906 | |
| 29 | Brooks Meeks | .7500 | 1934 | |
| 29 | Frank Vance* | .7500 | 1929 | |
| 29 | Max Morris* | .7500 | 1921 | |
| 29 | Charlie Rogers# | .7500 | 1955 | |
| 34 | Larry Gregory# | .7391 | 1947 | |
| 35 | George Atkins# | .7368 | 1951 | |
| 36 | George Dunlap | .7308 | 1896 | |
| 37 | Dirk Mannheim | .7273 | 1922 | |
| 37 | Sherry Doyal# | .7273 | 1956 | |
| 39 | Marsh Perry | .7241 | 1895 | |
| 40 | Bill Brady | .7143 | 1897 | |
| 41 | Bill Craigen* | .7083 | 1902 | |
| 42 | Otis O'Keefe# | .7037 | 1957 | |
| 43 | Jimmie Dunn | .7000 | 1894 | |
| 44 | Cliff Moss | .6957 | 1938 | |
| 44 | Conrad Gardner | .6957 | 1916 | |
| 46 | Johnny McDowell | .6923 | 1935 | |
| 47 | Powell Slocum* | .6842 | 1913 | |
| 48 | Pat Petty# | .6774 | 1955 | |
| 49 | Powell Slocum* | .6667 | 1914 | |
| 49 | Al Wheeler* | .6667 | 1938 | |
| 49 | Ossie Julious* | .6667 | 1898 | |
| 49 | Michael Fuller | .6667 | 1895 | |
| 49 | George Rutter# | .6667 | 1951 | |
| 49 | Ralph Johnson# | .6667 | 1952 | |
| 49 | Chief Lewis# | .6667 | 1956 | |
| 49 | Billy Woytek | .6667 | 1945 | |
| 49 | Rankin Kellogg* | .6667 | 1933 | |
| 49 | John Dibblee* | .6667 | 1910 | |
| 59 | Charlie Venema | .6538 | 1908 | |
| 59 | Hal Kennedy# | .6538 | 1961 | |
| 59 | Babe Spencer | .6538 | 1919 | |
| 62 | George Blankenship | .6522 | 1895 | |
| 62 | George Blankenship | .6522 | 1893 | |
| 62 | Fred Barrell | .6522 | 1931 | |
| 65 | Amos Gatlin | .6500 | 1900 | |
| 65 | Virgil Manuel | .6500 | 1898 | |
| 65 | John Cook* | .6500 | 1912 | |
| 65 | Paul Williams# | .6500 | 1960 | |
| 69 | Alf Pestilli | .6400 | 1938 | |
| 69 | Bob Donoghue | .6400 | 1943 | |
| 71 | Cy Lynch | .6364 | 1920 | |
| 71 | Bill Tutwiler# | .6364 | 1959 | |
| 73 | Edwin Hackberry# | .6333 | 1955 | |
| 73 | Edwin Hackberry# | .6333 | 1953 | |
| 75 | Gil Hice* | .6316 | 1900 | |
| 75 | Ed McCorkel | .6316 | 1900 | |
| 75 | Rick Masters# | .6316 | 1960 | |
| 78 | George Reid | .6296 | 1905 | |
| 78 | Powell Slocum* | .6296 | 1908 | |
| 80 | Carlos Cano | .6286 | 1930 | |
| 81 | George Reid | .6250 | 1906 | |
| 82 | Andy Gross | .6207 | 1942 | |
| 83 | Tom Taylor | .6190 | 1928 | |
| 84 | Alex Diaz | .6111 | 1928 | |
| 84 | Jim Cator | .6111 | 1920 | |
| 84 | Dave Gleaves | .6111 | 1900 | |
| 84 | Al Clement | .6111 | 1954 | |
| 88 | Will Thompson | .6087 | 1894 | |
| 88 | Harry Simmons | .6087 | 1931 | |
| 90 | John Goldsmith | .6000 | 1898 | |
| 90 | Pete Layton* | .6000 | 1938 | |
| 90 | Ossie Julious* | .6000 | 1896 | |
| 90 | John Waggoner* | .6000 | 1906 | |
| 94 | Buck Pusey | .5926 | 1947 | |
| 94 | Joe Ward* | .5926 | 1921 | |
| 94 | Elijah Bourdeau | .5926 | 1946 | |
| 94 | Billy Porter | .5926 | 1914 | |
| 98 | Bud Jameson | .5909 | 1935 | |
| 98 | Chuck Adams | .5909 | 1945 | |
| 98 | Pat Todd# | .5909 | 1959 |
