1983 Toronto Blue Jays season Game log September

| Date_ | Opponent | Score | Loss | Record |
|---|---|---|---|---|
| September 11 | Athletics | 16 - 6 | Codiroli (12-11) | 79-66 |
| September 13 | @ Mariners | 6 - 4 | Stoddard (8-15) | 80-66 |
| September 14 | @ Mariners | 4 - 3 | Thomas (3-1) | 81-66 |
| September 15 | @ Twins | 6 - 2 | Stieb (15-12) | 81-67 |
| September 16 | @ Twins | 11 - 4 | Gott (9-14) | 81-68 |
| September 17 | @ Twins | 13 - 3 | Pettibone (0-2) | 82-68 |
| September 19 | Mariners | 9 - 6 | Geisel (0-3) | 82-69 |
| September 20 | Mariners | 7 - 3 | Moore (5-8) | 83-69 |
| September 21 | Mariners | 4 - 3 | Clark (7-9) | 84-69 |
| September 23 | @ Athletics | 2 - 0 | Leal (13-11) | 84-70 |
| September 24 | @ Athletics | 2 - 1 (10) | Clancy (14-10) | 84-71 |