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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | H9 | YEAR | Open Postseason Leaderboard |
|---|---|---|---|---|
| 1 | Christy Mathewson# | 3.86 | 1900-1914 | |
| 2 | Jesse Burkett | 5.60 | 1903-1912 | |
| 3 | Adam Briggs# | 6.82 | 1908-1914 | |
| 3 | Toad Ramsey | 6.82 | 1905-1910 | |
| 5 | Jake Campbell# | 7.03 | 1905-1914 | |
| 6 | Danny Maxwell# | 7.26 | 1908-1914 | |
| 7 | Deacon Phillippe | 7.77 | 1899-1906 | |
| 8 | Matt Adams# | 7.80 | 1906-1914 | |
| 9 | Frank Groves# | 8.26 | 1904-1910 | |
| 10 | Addie Joss# | 8.67 | 1904-1914 | |
| 11 | Brent Mattern# | 9.22 | 1904-1914 | |
| 12 | Bob Black | 9.62 | 1904-1912 | |
| 13 | Pink Hawley# | 9.87 | 1901-1914 |
