Has there ever been a 11–11 in the Primeira Liga?

Never.

It would be a scorigami. Based on the average number of goals in the Primeira Liga, the chance of a game ending 11–11 is about 1 in 146,910,854,625,907.

Nearby scores

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