Has there ever been a 11–3 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 11–3 is about 1 in 34,720,465.

Nearby scores

1. 12–2 Never
2. 12–3 Never
3. 12–4 Never
4. 11–2 Never
5. 11–3 Never
6. 11–4 Never
7. 10–2 Never
8. 10–3 Never
9. 10–4 Never