Has there ever been a 11–1 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 11–1 is about 1 in 5,719,445.

Nearby scores

1. 12–0 Never
2. 12–1 Never
3. 12–2 Never
4. 11–0 Never
5. 11–1 Never
6. 11–2 Never
7. 10–0 Never
8. 10–1 1 time
9. 10–2 Never