1984 Toronto Blue Jays season Game log September

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| September 11 | Yankees | 10 - 3 | Rasmussen (8-5) | 21451 | 81-63 |
| September 12 | Yankees | 2 - 1 | Niekro (16-8) | 20426 | 82-63 |
| September 13 | Yankees | 6 - 1 | Leal (13-7) | 20681 | 82-64 |
| September 14 | @ Tigers | 7 - 2 | Morris (17-11) | 46040 | 83-64 |
| September 15 | @ Tigers | 2 - 1 | Stieb (14-7) | 44349 | 83-65 |
| September 16 | @ Tigers | 8 - 3 | Clark (1-2) | 45488 | 83-66 |
| September 17 | Red Sox | 5 - 4 | Ojeda (11-12) | 18480 | 84-66 |
| September 18 | Red Sox | 10 - 3 | Leal (13-8) | 18399 | 84-67 |
| September 19 | Red Sox | 10 - 4 | Clancy (12-15) | 23212 | 84-68 |
| September 20 | Brewers | 6 - 4 | Gibson (1-4) | 21688 | 85-68 |