List of Major League Baseball earned run average champions Other major leagues Other major leagues

| Year_ | Leader | Team | League | Runner_up |
|---|---|---|---|---|
| 1887 | Elmer Smith Category:Articles with hCards | Cincinnati Red Stockings | American Association | Matt Kilroy Category:Articles with hCards |
| 1888 | Silver King Category:Articles with hCards | St. Louis Browns | American Association | Ed Seward Category:Articles with hCards |
| 1889 | Jack Stivetts Category:Articles with hCards | St. Louis Browns | American Association | Jesse Duryea Category:Articles with hCards |
| 1890 | Scott Stratton Category:Articles with hCards | Louisville Colonels | American Association | Red Ehret Category:Articles with hCards |
| 1890 | Silver King Category:Articles with hCards | Chicago Pirates | Players` League | Harry Staley Category:Articles with hCards |
| 1891 | Ed Crane Category:Articles with hCards | Cincinnati Kelly`s Killers | American Association | George Haddock Category:Articles with hCards |
| 1914 | Claude Hendrix Category:Articles with hCards | Chicago Chi-Feds | Federal League | Russ Ford Category:Articles with hCards |
| 1915 | Earl Moseley Category:Articles with hCards | Newark Pepper | Federal League | Eddie Plank Category:Articles with hCards † |