Has there ever been a 11–0 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 11–0 is about 1 in 5,660,009.

Nearby scores

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