On 19 May 2018, Tepatitlán was proclaimed champion of the 2017–18 season of Serie A de México after defeating Loros UdeC by penalty shootout in the promotion final.

However, they were not promoted to Ascenso MX and were forced to remain in Serie A after the Mexican Football Federation ruled the club did not meet the necessary requirements.

and adopted the nickname Alteños, with the aim of representing the entire region, Los Altos de Jalisco.

due to financial problems derived from off-field situations and the constant changes in the team's roster as a result of the age limitations of the Liga de Expansión players.

and with the aim of ensuring the continuity of professional football in the city, a group of local businessmen bought the club Acatlán F.C.

did not grant permission to do so, so Acatlán paused its attempt to move from its city pending a future change of name and venue of the Liga de Expansión team.

[15] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.