League team vs team - 1978 American League
Regular season
| American League |
| KEN | CED | LOU | EDM | WPP | ROS | GOT | DOR | POC | BAR | BRR | SMV |
| KEN | x | 7-5 | 4-8 | 7-5 | 6-6 | 9-3 | 4-5 | 8-1 | 5-4 | 4-5 | 3-6 | 8-1 |
| CED | 5-7 | x | 3-9 | 5-7 | 3-9 | 7-5 | 4-5 | 4-5 | 5-4 | 1-8 | 5-4 | 4-5 |
| LOU | 8-4 | 9-3 | x | 7-5 | 8-4 | 10-2 | 5-4 | 7-2 | 7-2 | 6-3 | 5-4 | 7-2 |
| EDM | 5-7 | 7-5 | 5-7 | x | 2-10 | 6-6 | 5-4 | 6-3 | 6-3 | 7-2 | 6-3 | 6-3 |
| WPP | 6-6 | 9-3 | 4-8 | 10-2 | x | 7-5 | 5-4 | 5-4 | 7-2 | 6-3 | 7-2 | 7-2 |
| ROS | 3-9 | 5-7 | 2-10 | 6-6 | 5-7 | x | 5-4 | 6-3 | 4-5 | 4-5 | 2-7 | 4-5 |
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| GOT | 5-4 | 5-4 | 4-5 | 4-5 | 4-5 | 4-5 | x | 10-2 | 10-2 | 6-6 | 6-6 | 8-4 |
| DOR | 1-8 | 5-4 | 2-7 | 3-6 | 4-5 | 3-6 | 2-10 | x | 5-7 | 5-7 | 7-5 | 6-6 |
| POC | 4-5 | 4-5 | 2-7 | 3-6 | 2-7 | 5-4 | 2-10 | 7-5 | x | 6-6 | 6-6 | 5-7 |
| BAR | 5-4 | 8-1 | 3-6 | 2-7 | 3-6 | 5-4 | 6-6 | 7-5 | 6-6 | x | 5-7 | 6-6 |
| BRR | 6-3 | 4-5 | 4-5 | 3-6 | 2-7 | 7-2 | 6-6 | 5-7 | 6-6 | 7-5 | x | 9-3 |
| SMV | 1-8 | 5-4 | 2-7 | 3-6 | 2-7 | 5-4 | 4-8 | 6-6 | 7-5 | 6-6 | 3-9 | x |
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