Has there ever been a 8–0 in the Primeira Liga?

Yes, 1 time.

The only time: January 29, 2024, Sporting CP beat Casa Pia (Sporting CP 8–0 Casa Pia).

Nearby scores

1. 9–0 Never
2. 9–1 Never
3. 8–0 1 time
4. 8–1 2 times
5. 7–0 9 times
6. 7–1 5 times