League team vs team - 1991 American League
Regular season
| American League |
| FRA | WOR | SOX | EKL | SDV | ORR | LAF | HYG | NYM | BCB | TOL | ROS |
| FRA | x | 4-8 | 5-7 | 7-5 | 3-9 | 7-5 | 3-6 | 7-2 | 3-6 | 3-6 | 2-7 | 2-7 |
| WOR | 8-4 | x | 7-5 | 7-5 | 8-4 | 9-3 | 6-3 | 6-3 | 6-3 | 8-1 | 5-4 | 3-6 |
| SOX | 7-5 | 5-7 | x | 6-6 | 5-7 | 8-4 | 3-6 | 5-4 | 4-5 | 3-6 | 3-6 | 5-4 |
| EKL | 5-7 | 5-7 | 6-6 | x | 10-2 | 9-3 | 3-6 | 5-4 | 7-2 | 5-4 | 4-5 | 5-4 |
| SDV | 9-3 | 4-8 | 7-5 | 2-10 | x | 8-4 | 3-6 | 9-0 | 5-4 | 6-3 | 4-5 | 4-5 |
| ORR | 5-7 | 3-9 | 4-8 | 3-9 | 4-8 | x | 3-6 | 3-6 | 7-2 | 1-8 | 3-6 | 6-3 |
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| LAF | 6-3 | 3-6 | 6-3 | 6-3 | 6-3 | 6-3 | x | 10-2 | 10-2 | 4-8 | 7-5 | 4-8 |
| HYG | 2-7 | 3-6 | 4-5 | 4-5 | 0-9 | 6-3 | 2-10 | x | 2-10 | 7-5 | 6-6 | 5-7 |
| NYM | 6-3 | 3-6 | 5-4 | 2-7 | 4-5 | 2-7 | 2-10 | 10-2 | x | 5-7 | 4-8 | 5-7 |
| BCB | 6-3 | 1-8 | 6-3 | 4-5 | 3-6 | 8-1 | 8-4 | 5-7 | 7-5 | x | 3-9 | 6-6 |
| TOL | 7-2 | 4-5 | 6-3 | 5-4 | 5-4 | 6-3 | 5-7 | 6-6 | 8-4 | 9-3 | x | 7-5 |
| ROS | 7-2 | 6-3 | 4-5 | 4-5 | 5-4 | 3-6 | 8-4 | 7-5 | 7-5 | 6-6 | 5-7 | x |
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