The Inter-university Athletic League, often abbreviated LAI, is a college athletics conference in the U.S. Commonwealth of Puerto Rico.The LAI is a non-profit organization whose main purpose is to regulate sports amongst its member institutions. The league was founded in 1929 by Cosme Beitía of the University of Puerto Rico at Rio Piedras, Charles Leker for the Interamerican University of Puerto Rico, and Luis Izquierdo Galo y José D. Morales from the University of Puerto Rico at Mayagüez. The league is best known for its flagship inter-collegiate sports event locally called Las Justas which takes place yearly during the month of April, generally in the city of Ponce.