2005 Seattle Mariners season Game log August

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| August 2 | @ Tigers | 4–1 | Johnson (7–9) | 30306 | 46–59 |
| August 3 | @ Tigers | 10–7 | Meche (10–8) | 26760 | 46–60 |
| August 4 | @ Tigers | 3–1 | Hernández (0–1) | 28148 | 46–61 |
| August 5 | @ White Sox | 4–2 | García (11–5) | 39165 | 47–61 |
| August 6 | @ White Sox | 4–2 | Moyer (9–4) | 37529 | 47–62 |
| August 7 | @ White Sox | 3–1 | Harris (0–1) | 35706 | 47–63 |
| August 8 | Twins | 5–4 | Silva (7–6) | 35401 | 48–63 |
| August 9 | Twins | 1–0 | Lohse (7–11) | 34213 | 49–63 |
| August 10 | Twins | 7–3 | Nelson (1–2) | 35801 | 49–64 |
| August 12 | Angels | 9–4 | Putz (4–5) | 37585 | 49–65 |
| August 13 | Angels | 9–1 | Franklin (6–12) | 42500 | 49–66 |