Has there ever been a 12–1 in the Liga MX?

Never.

It would be a scorigami. Based on the average number of goals in the Liga MX, the chance of a game ending 12–1 is about 1 in 15,621,943.

Nearby scores

1. 13–0 Never
2. 13–1 Never
3. 13–2 Never
4. 12–0 Never
5. 12–1 Never
6. 12–2 Never
7. 11–0 Never
8. 11–1 Never
9. 11–2 Never