Has there ever been a 6–6 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 6–6 is about 1 in 445,649.

Nearby scores

1. 7–5 Never
2. 7–6 Never
3. 7–7 Never
4. 6–5 Never
5. 6–6 Never
6. 5–5 Never