Sepulveda; and two years later in the 1974–75 season, they were promoted to Primera División Mexicana by beating Irapuato in a promotion game under the management of Everardo Villaseñor. First Years in the First Division The club played its first Primera División Mexicana match on September 3, 1975 against Puebla F.C., a match which the club went on to lose 2–3. The club's first win was played against Atleticos Campesinos, with the match being played in the Jalisco Stadium. That year the club finished in second place and qualifying to its first liguilla playoff stage. In quarterfinals the club went up against Club América who eliminated the newly promoted club. The following year, the club finished 4th overall and once again qualified to the liguilla, but is once again, knocked out in quarterfinals, this time by Tigres de la UANL. In the 1979-80 tournament the clubs invited to play a friendly tournament in Spain the Torneo Sol de Valencia which the club manages to win. The story being the complete opposite in their domestic league, where the club failed to qualify to the liguilla. In the 1980–81 season, Tecos UAG achieved 20 games without losing and ended in the first position of the table creating a national record, but they were unable to get to the finals in the post-season round robin elimination. In the 1986–87 season, Tecos UAG was shown as one of the biggest contenders of the tournament. Jose Luis Zalazar achieved the Goal Scoring Championship by making 21 goals, the most of them from penalty kicks. They reached the quarterfinals against Cruz Azul and they lost in the penalty shootout where Zalazar failed to score one of the shoots deciding the fate of the game. 1993-94 Championship After some seasons where they faced bad seasons and others where they could not pass the quarterfinals in the Liguilla, the club hired manager Víctor Manuel Vucetich, known at the time for promoting clubs Potros Neza and León. Vucetich had also managed the last team to win the league title years before. The squad was formed by players like Carlos Briones, Jorge Gabrich, Porfirio Jiménez, Osmar Donizette, Marcelo Gonçalvez and others. During the first part of the season they fought the top of the table with CD Guadalajara and at the end of the first part of the season, Guadalajara got the first place, but a consistent second part of