1989 Chicago Cubs season Game log September

| Date_ | Opponent | Score | Loss | Save_ |
|---|---|---|---|---|
| September 1 | @ Braves | 5 - 1 | Wilson (5-3) | Stanton (2) |
| September 2 | @ Braves | 10 - 3 | Clary (4-3) | || 41,020 ||76-59|| |
| September 3 | @ Braves | 8 - 5 | Bielecki (14-6) | Stanton (3) |
| September 4 | @ Mets | 7 - 3 | Cone (12-7) | Lancaster (6) |
| September 5 | @ Mets | 3 - 2 | Williams (4-3) | || 39,352 ||77-61|| |
| September 6 | @ Phillies | 9 - 1 | Maddux (16-11) | || 17,272 ||77-62|| |
| September 7 | @ Phillies | 6 - 2 | Howell (11-11) | || 13,058 ||78-62|| |
| September 8 | Cardinals | 11 - 8 | Williams (4-4) | Quisenberry (6) |