1978 Mexican League season

The 1978 Mexican League season was the 54th season in the history of the Mexican League. It was contested by sixteen teams, evenly divided in North and South zones. Rieleros de Aguascalientes won the championship by defeating Algodoneros de Unión Laguna in the Serie Final 4 games to 1, led by manager Jaime Favela in his first season as coach. This was the Rieleros first, and as of 2024, only Mexican League championship.

Perfect games

 * Diego Seguí (COR): On 21 June 1978, Seguí pitched the fourth perfect game in the Mexican League history and the first in franchise history against the Tecolotes de Nuevo Laredo.


 * Horacio Piña (AGS): On 12 July 1978, Piña pitched the fifth perfect game in the Mexican League history and the first in franchise history against the Diablos Rojos del México in the first round of the playoffs.

No-hitters

 * Arturo González (MTY): On 28 June 1978, González threw the third no-hitter in franchise history by defeating the Algodoneros de Unión Laguna 2–0.


 * Mike Paul (JUA): On 12 July 1978, Paul threw the second no-hitter in franchise history by defeating the Sultanes de Monterrey 1–0 in seven innings.