1989 Chicago Cubs season Game log August

| Date_ | Opponent | Score | Loss | Save_ |
|---|---|---|---|---|
| August 9 | Expos | 3 - 0 | B. Smith (9-6) | Williams (29) |
| August 10 | Phillies | 16 - 13 | Wilson (5-1) | || 36,745 ||66-49|| |
| August 11 | Phillies | 9 - 2 | Carman (3-12) | || 36,440 ||67-49|| |
| August 12 | Phillies | 9 - 7 | Howell (9-8) | Williams (30) |
| August 13 | Phillies | 5 - 3 | Wilson (5-2) | || 37,054 ||68-50|| |
| August 15 | @ Reds | 5 - 2 12 | Roesler (0-1) | || 31,694 ||69-50|| |
| August 16 | @ Reds | 5 - 1 | Leary (8-10) | || 29,764 ||70-50|| |
| August 17 | @ Reds | 3 - 2 | Franco (3-6) | Williams (31) |
| August 18 | @ Astros | 6 - 5 | Schiraldi (3-5) | || 31,987 ||71-51|| |