Has there ever been a 10–8 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 10–8 is about 1 in 15,775,543,680.

Nearby scores

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