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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WPCT | YEAR | Open Postseason Career Leaderboard |
|---|---|---|---|---|
| 1 | Harry Krause | 1.000 | 1909 | |
| 1 | Dutch Leonard# | 1.000 | 1915 | |
| 1 | Babe Adams# | 1.000 | 1914 | |
| 1 | Cy Young | 1.000 | 1901 | |
| 1 | Joe Williams# | 1.000 | 1910 | |
| 1 | Eddie Plank# | 1.000 | 1908 | |
| 1 | Mordecai Brown# | 1.000 | 1909 | |
| 1 | Red Ames# | 1.000 | 1905 | |
| 1 | Joe Wood# | 1.000 | 1915 | |
| 1 | George McConnell# | 1.000 | 1913 | |
| 1 | Charles Bender# | 1.000 | 1913 | |
| 1 | Addie Joss | 1.000 | 1906 | |
| 1 | Hooks Wiltse | 1.000 | 1906 | |
| 1 | Babe Adams# | 1.000 | 1913 | |
| 1 | Christy Mathewson# | 1.000 | 1906 | |
| 1 | Jesse Tannehill | 1.000 | 1901 | |
| 1 | Jesse Tannehill | 1.000 | 1903 | |
| 1 | Jack Chesbro | 1.000 | 1907 | |
| 1 | Kid Nichols* | 1.000 | 1892 | |
| 1 | Christy Mathewson# | 1.000 | 1904 | |
| 1 | Rube Waddell | 1.000 | 1902 | |
| 1 | Rube Waddell | 1.000 | 1903 | |
| 23 | Claude Hendrix# | .667 | 1912 | |
| 23 | Charles Bender# | .667 | 1903 | |
| 25 | George McQuillan# | .500 | 1908 | |
| 25 | Rube Marquard# | .500 | 1911 | |
| 25 | Rube Marquard# | .500 | 1914 | |
| 25 | Addie Joss | .500 | 1905 | |
| 25 | Jack Pfiester | .500 | 1907 | |
| 25 | Charles Bender# | .500 | 1908 | |
| 25 | Charles Bender# | .500 | 1909 | |
| 25 | Charles Bender# | .500 | 1911 | |
| 25 | Mordecai Brown# | .500 | 1910 | |
| 25 | Tom Hughes | .500 | 1909 | |
| 25 | Jeff Tesreau# | .500 | 1914 | |
| 25 | Vean Gregg# | .500 | 1911 | |
| 25 | Dutch Leonard# | .500 | 1914 | |
| 25 | Bill Donovan# | .500 | 1907 | |
| 25 | Joe Lake | .500 | 1910 | |
| 25 | Russ Ford | .500 | 1910 | |
| 25 | Frank Smith | .500 | 1908 | |
| 25 | George Mullin | .500 | 1907 | |
| 25 | Christy Mathewson# | .500 | 1911 | |
| 25 | Orval Overall | .500 | 1909 | |
| 25 | Orval Overall | .500 | 1910 | |
| 25 | Rube Waddell | .500 | 1908 | |
| 25 | Charlie Smith | .500 | 1907 | |
| 48 | Charles Bender# | .333 | 1912 | |
| 48 | Mordecai Brown# | .333 | 1907 | |
| 50 | Otto Hess | .000 | 1906 | |
| 50 | Eddie Plank# | .000 | 1903 | |
| 50 | Vean Gregg# | .000 | 1913 | |
| 50 | Doc White | .000 | 1906 | |
| 50 | Cy Young | .000 | 1892 | |
| 50 | Jeff Tesreau# | .000 | 1915 | |
| 50 | Rube Waddell | .000 | 1901 | |
| 50 | Bill Bernhard | .000 | 1906 | |
| 50 | Red Ames# | .000 | 1911 | |
| 50 | Weldon Henley | .000 | 1903 | |
| 50 | George Winter | .000 | 1901 |
