2005 Seattle Mariners season Game log August

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| August 27 | White Sox | 4–3 | Piñeiro (5–9) | 37326 | 54–74 |
| August 28 | White Sox | 9–2 | García (11–7) | 36838 | 55–75 |
| August 29 | Yankees | 7–4 | Thornton (0–4) | 41731 | 55–75 |
| August 30 | Yankees | 8–3 | Chacón (3–2) | 37773 | 56–75 |
| August 31 | Yankees | 2–0 | Hernández (2–2) | 46240 | 56–76 |