The following are the baseball events of the year 1889 throughout the world.
New York defeated Brooklyn, six games to three.
| American Association | National League | |||
|---|---|---|---|---|
| Stat | Player | Total | Player | Total |
| AVG | Tommy Tucker (BAL) | .372 | Dan Brouthers (BSN) | .373 |
| HR | Bug Holliday (CIN) Harry Stovey (PHA) | 19 | Sam Thompson (PHI) | 20 |
| RBI | Harry Stovey (PHA) | 119 | Roger Connor (NYG) | 130 |
| W | Bob Caruthers (BRO) | 40 | John Clarkson 1 (BSN) | 49 |
| ERA | Jack Stivetts (STL) | 2.25 | John Clarkson 1 (BSN) | 2.73 |
| K | Mark Baldwin (COL) | 368 | John Clarkson 1 (BSN) | 284 |
1 National League Triple Crown pitching winner
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^Some sources show 1890