Has there ever been a 13–3 in the La Liga?

Never.

It would be a scorigami. Based on the average number of goals in the La Liga, the chance of a game ending 13–3 is about 1 in 295,546,646.

Nearby scores

1. 14–2 Never
2. 14–3 Never
3. 14–4 Never
4. 13–2 Never
5. 13–3 Never
6. 13–4 Never
7. 12–2 Never
8. 12–3 Never
9. 12–4 Never