1989 Oakland Athletics season Game log August

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| August 1 | White Sox | 2–0 | Hibbard (2–3) | 22536 | 64–42 |
| August 2 | White Sox | 2–0 | Pérez (7–12) | 25146 | 65–42 |
| August 3 | White Sox | 6–4 | Welch (11–6) | 31974 | 65–43 |
| August 4 | @ Mariners | 5–3 | Holman (4–4) | 23621 | 66–43 |
| August 5 | @ Mariners | 11–5 | Moore (14–6) | 36961 | 66–44 |
| August 6 | @ Mariners | 2–1 | Dunne (2–6) | 19303 | 67–44 |
| August 7 | @ Mariners | 5–3 | Welch (11–7) | 31334 | 67–45 |
| August 8 | @ White Sox | 3 – 2 (10) | Pall (4–3) | 17832 | 68–45 |
| August 9 | @ White Sox | 3 – 2 (11) | Corsi (0–2) | 15389 | 68–46 |
| August 10 | @ White Sox | 4–1 | Rosenberg (3–8) | 16173 | 69–46 |