Has there ever been a 10–2 in the Liga MX?

Yes, 1 time.

The only time: January 14, 1969, Guadalajara beat Nuevo León (Guadalajara 10–2 Nuevo León).

Nearby scores

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