2003 Toronto Blue Jays season Game log April

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| April 12 | Twins | 9 - 6 | Escobar (0-1) | 14118 | 5-6 |
| April 13 | Twins | 9 - 3 | Hendrickson (1-2) | 13333 | 5-7 |
| April 14 | @ Yankees | 10 - 9 | Lopez (0-1) | 30761 | 5-8 |
| April 15 | @ Yankees | 5 - 0 | Halladay (0-2) | 33833 | 5-9 |
| April 16 | @ Yankees | 7 - 6 | Hitchcock (0-1) | 25831 | 6-9 |
| April 17 | @ Yankees | 4 - 0 | Walker (1-1) | 32057 | 6-10 |
| April 18 | @ Red Sox | 7 - 3 | Tam (0-1) | 31440 | 6-11 |
| April 19 | @ Red Sox | 7 - 2 | Sturtze (2-1) | 32329 | 6-12 |
| April 20 | @ Red Sox | 6 - 5 | Politte (0-2) | 29579 | 6-13 |