|Postseason Teams||World Series Winner|
The 1989 World Series started on Oct 14, 1989 and ended on Oct 28, 1989, lasting 4 games.
The Oakland Athletics had the best regular season record in the 1989 MLB season at 99-63.
The Oakland Athletics had the best run differential in the 1989 regular season at +136 runs.
The Detroit Tigers had the worst run differential in the 1989 regular season at -199 runs.
The Boston Red Sox had the most runs per game in the 1989 regular season at 4.78 RPG.
The Los Angeles Dodgers allowed the fewest runs per game in the 1989 regular season at 3.35 runs allowed per game.
There were 3 teams who tied as the last undefeated teams in the 1989 season with their first losses occuring on Apr 7, 1989, the Oakland Athletics (started 3-0), the Baltimore Orioles (started 2-0) and the Texas Rangers (started 2-0).
|Team||Record||Streak||RPG||RPG Allowed||Run Differential||Playoff Result|
|Oakland Athletics||99-63||W1||4.40||3.56||+136||Won WS|
|Chicago Cubs||93-69||W2||4.33||3.85||+79||Lost NLCS|
|San Francisco Giants||92-70||L2||4.31||3.70||+99||Lost WS|
|Kansas City Royals||92-70||L1||4.26||3.92||+55|
|Toronto Blue Jays||89-73||L1||4.51||4.02||+80||Lost ALCS|
|San Diego Padres||89-73||W2||3.96||3.86||+16|
|New York Mets||87-75||W4||4.22||3.67||+88|
|St. Louis Cardinals||86-76||L2||3.88||3.73||+24|
|Boston Red Sox||83-79||W1||4.78||4.54||+39|
|Los Angeles Dodgers||77-83||W4||3.46||3.35||+18|
|New York Yankees||74-87||L1||4.34||4.92||-94|
|Chicago White Sox||69-92||L1||4.30||4.66||-57|