1999 Cleveland Indians season Game log August

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| August 10 | @ Angels | 2 - 1 (10) | Petkovsek (9-4) | 25777 | 68-44 |
| August 11 | @ Angels | 4 - 3 | Sparks (5-9) | 26399 | 69-44 |
| August 13 | Orioles | 6 - 3 | Erickson (8-10) | 43073 | 70-44 |
| August 14 | Orioles | 7 - 1 | Johnson (3-7) | 43103 | 71-44 |
| August 15 | Orioles | 5 - 1 | Ponson (11-8) | 43020 | 72-44 |
| August 16 | Rangers | 13 - 5 | Rincón (2-3) | 43226 | 72-45 |
| August 17 | Rangers | 15 - 4 | Langston (1-2) | 42987 | 72-46 |
| August 18 | Rangers | 6 - 1 | Nagy (13-8) | 42997 | 72-47 |
| August 19 | Rangers | 8 - 0 | Morgan (12-8) | 43263 | 73-47 |
| August 20 | @ Mariners | 7 - 4 | Halama (9-5) | 44915 | 74-47 |