2008 Seattle Mariners season Game log April

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| April 10 | @ Rays | 7 - 0 | Batista (0-2) | 11898 | 4-6 |
| April 11 | Angels | 8 - 5 | Weaver (1-2) | 28915 | 5-6 |
| April 12 | Angels | 8 - 3 | Garland (1-2) | 34963 | 6-6 |
| April 13 | Angels | 10 - 5 | Baek (0-1) | 30664 | 6-7 |
| April 14 | Royals | 5 - 1 | Washburn (1-2) | 16751 | 6-8 |
| April 15 | Royals | 11 - 6 | Bale (0-3) | 17137 | 7-8 |
| April 16 | @ Athletics | 4 - 2 | Blanton (1-3) | 21126 | 8-8 |
| April 17 | @ Athletics | 8 - 1 | DiNardo (1-1) | 10164 | 9-8 |
| April 18 | @ Angels | 5 - 4 | Dickey (0-1) | 43939 | 9-9 |
| April 19 | @ Angels | 4 - 1 | Washburn (1-2) | 43959 | 9-10 |