Has there ever been a 7–3 in the Brasileirão?

Never.

It would be a scorigami. Based on the average number of goals in the Brasileirão, the chance of a game ending 7–3 is about 1 in 19,079.

Nearby scores

1. 8–2 3 times
2. 8–3 Never
3. 8–4 Never
4. 7–2 3 times
5. 7–3 Never
6. 7–4 1 time
7. 6–2 23 times
8. 6–3 7 times
9. 6–4 5 times