League team vs team - 1981 National League
Regular season
| National League |
| EVN | COL | BLU | FAI | FLU | CLE | SBC | MPB | ROC | BLO | NIS | ASH |
| EVN | x | 7-5 | 5-7 | 5-7 | 7-5 | 7-5 | 6-3 | 8-1 | 4-5 | 7-2 | 8-1 | 4-5 |
| COL | 5-7 | x | 5-7 | 7-5 | 7-5 | 5-7 | 4-5 | 6-3 | 4-5 | 5-4 | 7-2 | 3-6 |
| BLU | 7-5 | 7-5 | x | 3-9 | 8-4 | 9-3 | 6-3 | 3-6 | 2-7 | 6-3 | 6-3 | 5-4 |
| FAI | 7-5 | 5-7 | 9-3 | x | 6-6 | 10-2 | 4-5 | 5-4 | 5-4 | 5-4 | 9-0 | 7-2 |
| FLU | 5-7 | 5-7 | 4-8 | 6-6 | x | 8-4 | 4-5 | 3-6 | 7-2 | 5-4 | 8-1 | 4-5 |
| CLE | 5-7 | 7-5 | 3-9 | 2-10 | 4-8 | x | 6-3 | 6-3 | 3-6 | 5-4 | 6-3 | 5-4 |
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| SBC | 3-6 | 5-4 | 3-6 | 5-4 | 5-4 | 3-6 | x | 6-6 | 6-6 | 9-3 | 11-1 | 7-5 |
| MPB | 1-8 | 3-6 | 6-3 | 4-5 | 6-3 | 3-6 | 6-6 | x | 4-8 | 5-7 | 6-6 | 8-4 |
| ROC | 5-4 | 5-4 | 7-2 | 4-5 | 2-7 | 6-3 | 6-6 | 8-4 | x | 7-5 | 8-4 | 5-7 |
| BLO | 2-7 | 4-5 | 3-6 | 4-5 | 4-5 | 4-5 | 3-9 | 7-5 | 5-7 | x | 7-5 | 8-4 |
| NIS | 1-8 | 2-7 | 3-6 | 0-9 | 1-8 | 3-6 | 1-11 | 6-6 | 4-8 | 5-7 | x | 8-4 |
| ASH | 5-4 | 6-3 | 4-5 | 2-7 | 5-4 | 4-5 | 5-7 | 4-8 | 7-5 | 4-8 | 4-8 | x |
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