Here are the results of Day 1 of the 2012 Nationals held at Challenge Stadium in Perth.
| Comp | White Team | Score | Black Team | Score | |
| Men | WA | 4 | vs | WA Colts | 1 |
| Juniors | Tas A | 17 | vs | Tas B | 0 |
| Masters | WA Metro | 13 | vs | WA Country | 0 |
| Masters | Sing | 3 | vs | NSW | 5 |
| Women | NSW | 2 | vs | WA | 1 |
| Women | Tas | 4 | vs | Vic | 1 |
| Juniors | Tas B | 0 | vs | WA | 17 |
| Men | WA | 12 | vs | Qld | 0 |
| Masters | WA Metro | 13 | vs | SA | 0 |
| Masters | Sing | 1 | vs | WA Country | 11 |
| Women | NSW | 13 | vs | Qld | 0 |
| Men | Vic | 4 | vs | WA Colts | 6 |
| Women | Tas | 1 | vs | WA | 5 |
| Men | NSW | 2 | vs | Qld | 5 |
| Juniors | Tas A | 6 | vs | WA | 1 |
| Masters | SA | 6 | vs | NSW | 2 |
| Men | Vic | 4 | vs | Tas | 2 |
| Women | Qld | 0 | vs | Vic | 18 |