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The 1918 Primera División was the seventh season of top-flight Peruvian football. A total of 14 teams competed in the league, The champion was Sport Alianza. It was organized by the homonymous entity, Liga Peruana de Football (Peruvian Football League), currently known as Professional Football Sports Association.
"Nuestra Historia". ADFP (in Spanish). Retrieved 2023-05-05. The Professional Football Sports Association was officially founded on 12 May, 1912 under the name of "Liga Peruana de Football".