 Also, in the Clausura 2004 season, Atlético Mexiquense finished 2nd place in the standings and played for the first time in the Primera A Championship in their history against San Luis F.C., (who won and eventually ascended to the Primera División).The team does not have a special nickname, although some call them the "Diablitos" (Little Devils), "pingos", and "demonios" (Demons).Atlético Mexiquense for the 2009–2010 season did not complete in the new Liga de Ascenso since according to the FEMEXFUT did not meet the requirements to continue taking their place, and was relegated to the Second Division, also as part of this division also cuts out Socio Águila, Monterrey, Chihuahua Indians, Santos Laguna, Tigres "B" Jaguares de Tapachula, Tampico Madero, Academic Atlas, Tecos UAG and Mérida "B" (newly promoted).