1989 Chicago Cubs season Game log May

| Date_ | Opponent | Score | Loss | Save_ |
|---|---|---|---|---|
| May 12 | Astros | 3 - 1 | Sutcliffe (4-3) | || 21,141 ||17-16|| |
| May 13 | Astros | 1 - 0 | Maddux (1-5) | Smith (6) |
| May 14 | Astros | 5 - 1 | Kilgus (3-4) | || 23,391 ||17-18|| |
| May 15 | Braves | 4 - 0 | Lilliquist (2-3) | || 16,920 ||18-18|| |
| May 16 | Braves | 4 - 3 | Glavine (5-1) | Williams (11) |
| May 17 | Braves | 4 - 0 | Z. Smith (1-6) | || 31,196 ||20-18|| |
| May 19 | @ Reds | 8 - 2 | Jackson (2-7) | || 29,202 ||21-18|| |
| May 20 | @ Reds | 7 - 3 | Browning (3-4) | Perry (1) |
| May 21 | @ Reds | 7 - 2 | Bielecki (3-2) | || 34,128 ||22-19|| |
| May 22 | @ Astros | 5 - 3 | Deshaies (5-3) | Schiraldi (3) |