1977 Seattle Mariners season Game log May

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| May 24 | @ Cleveland Indians | 5-7 | Romo (1-3) | 5576 | 16-29 |
| May 25 | @ Cleveland Indians | 1-2 | Laxton (2-2) | 4516 | 16-30 |
| May 27 | @ Detroit Tigers | 2-1 | Fidrych (0-1) | 44207 | 17-30 |
| May 28 | @ Detroit Tigers | 3-1 | Rozema (4-2) | 15820 | 18-30 |
| May 29 | @ Detroit Tigers | 6-4 | Foucault (3-2) | 11778 | 19-30 |
| May 30 | @ Texas Rangers | 7-4 | Blyleven (4-6) | DH | 20-30 |
| May 30 | @ Texas Rangers | 9-3 | Perry (4-5) | 17844 | 21-30 |