1989 Toronto Blue Jays season Game log August

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| August 11 | @ Royals | 6 - 2 | Flanagan (6-8) | 40027 | 57-58 |
| August 12 | @ Royals | 2 - 0 | Gubicza (10-10) | 40934 | 58-58 |
| August 13 | @ Royals | 8 - 3 | Cerutti (9-6) | 33619 | 58-59 |
| August 14 | @ Red Sox | 4 - 2 | Boddicker (10-9) | 35058 | 59-59 |
| August 15 | @ Red Sox | 7 - 2 | Smithson (6-11) | 34800 | 60-59 |
| August 16 | @ Red Sox | 7 - 3 | Murphy (3-6) | 35310 | 61-59 |
| August 17 | @ Orioles | 11 - 6 | Cerutti (9-7) | 40147 | 61-60 |
| August 18 | @ Orioles | 9 - 2 | Johnson (2-2) | 31668 | 62-60 |
| August 19 | @ Orioles | 5 - 1 | Milacki (7-11) | 38111 | 63-60 |