The Apertura 2018 Liga MX championship stage commonly known as Liguilla (mini league) was played from 28 November 2018 to 16 December 2018. A total of eight teams competed in the championship stage to decide the champions of the Apertura 2018 Liga MX season. Both finalists qualified to the 2020 CONCACAF Champions League.
The following 8 teams qualified for the championship stage.
In the following table, the number of appearances, last appearance, and previous best result count only those in the short tournament era starting from Invierno 1996 (not counting those in the long tournament era from 1943âÂÂ44 to 1995âÂÂ96).
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All times are
Cruz Azul won 3âÂÂ1 on aggregate.
Monterrey won 3âÂÂ0 on aggregate.
UNAM won 4âÂÂ3 on aggregate.
América won 5âÂÂ4 on aggregate.
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All times are
1âÂÂ1 on aggregate and tied on away goals. Cruz Azul advanced for being the higher seed in the classification table.
América won 7âÂÂ2 on aggregate.
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América won 2âÂÂ0 on aggregate.