Has there ever been a 15–12 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 15–12 is about 1 in 533,992,382,626,432,060.

Nearby scores

1. 16–11 Never
2. 16–12 Never
3. 16–13 Never
4. 15–11 Never
5. 15–12 Never
6. 15–13 Never
7. 14–11 Never
8. 14–12 Never
9. 14–13 Never