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

Yes, 7 times.

The first time: September 17, 1944, Atlante beat Oro (Atlante 8–0 Oro).

The last time: November 4, 2007, Pumas UNAM beat Veracruz (Pumas UNAM 8–0 Veracruz), 18 years ago.

Home wins: 7. Away wins: 0.

Nearby scores

1. 9–0 2 times
2. 9–1 1 time
3. 8–0 7 times
4. 8–1 5 times
5. 7–0 23 times
6. 7–1 22 times

All games

1. November 4, 2007 Pumas UNAM 8–0 Veracruz
2. November 21, 1974 Atlético Español 8–0 Ciudad Madero
3. November 25, 1956 Atlante 8–0 Tampico
4. July 29, 1951 Zacatepec 8–0 Veracruz
5. November 8, 1947 Oro 8–0 San Sebastián
6. August 19, 1945 Puebla 8–0 Marte
7. September 17, 1944 Atlante 8–0 Oro