Has there ever been a 7–1 in the Liga MX?

Yes, 22 times.

The first time: April 7, 1946, España beat Asturias (Asturias 1–7 España).

The last time: September 29, 2013, Toluca beat Atlante (Toluca 7–1 Atlante), 13 years ago.

Home wins: 19. Away wins: 3.

Nearby scores

1. 8–0 7 times
2. 8–1 5 times
3. 8–2 11 times
4. 7–0 23 times
5. 7–1 22 times
6. 7–2 17 times
7. 6–0 58 times
8. 6–1 83 times
9. 6–2 60 times

All games

1. September 29, 2013 Toluca 7–1 Atlante
2. May 15, 2010 Santos Laguna 7–1 Morelia
3. February 17, 2010 Atlas 7–1 Indios de Ciudad Juárez
4. November 7, 2004 Atlante 7–1 Monterrey
5. October 16, 2004 Tigres UANL 7–1 Veracruz
6. August 24, 2003 Querétaro 1–7 Tigres UANL
7. October 19, 2002 Pumas UNAM 7–1 Guadalajara
8. November 8, 1992 León 7–1 Santos Laguna
9. March 24, 1984 Monterrey 7–1 Atlas
10. March 25, 1979 Tampico 7–1 León
11. September 17, 1977 Tecos UAG 7–1 Unión de Curtidores
12. June 22, 1977 América 7–1 Atlético Potosino
13. October 27, 1974 Zacatepec 7–1 Laguna
14. June 24, 1966 Guadalajara 1–7 Cruz Azul
15. August 11, 1963 Pumas UNAM 7–1 Nacional (Guadalajara)
16. September 4, 1955 Atlante 7–1 Zamora
17. September 20, 1953 Guadalajara 7–1 Tampico
18. June 20, 1948 Oro 7–1 Moctezuma
19. October 27, 1946 Veracruz 7–1 San Sebastián
20. June 16, 1946 Oro 7–1 ADO
21. May 5, 1946 Marte 7–1 Monterrey
22. April 7, 1946 Asturias 1–7 España