2003 Toronto Blue Jays season Game log May

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| May 1 | Rangers | 7 - 6 | Lewis (3-2) | 16111 | 11-18 |
| May 2 | Angels | 3 - 1 | Lackey (1-3) | 17799 | 12-18 |
| May 3 | Angels | 7 - 1 | Shields (1-1) | 21007 | 13-18 |
| May 4 | Angels | 8 - 2 | Ortiz (4-3) | 21513 | 14-18 |
| May 6 | @ Rangers | 15 - 5 | Lewis (3-3) | 20092 | 15-18 |
| May 7 | @ Rangers | 5 - 4 | Sturtze (3-3) | 18508 | 15-19 |
| May 8 | @ Rangers | 8 - 6 | Drese (2-2) | 20177 | 16-19 |
| May 9 | @ Angels | 6 - 1 | Davis (1-1) | 42820 | 16-20 |
| May 10 | @ Angels | 7 - 4 | Ortiz (4-4) | 43661 | 17-20 |