High Quality Content by WIKIPEDIA articles! The Coliseo Rafael A. Mangual is a sports arena in Mayagüez, Puerto Rico. It was inagurated in 1974 and was designed by Henry Klumb. The Coliseum is managed by the Physical Education Department of the University. Many sporting events are held there such as basketball, volleyball and others. Many Academic, Cultural and Business activities are held at the arena, including the University Graduation ceremonies each June, concerts from the Puerto Rico Symphony Orchestra and University Job Fairs. The Boxing events for the 2010 Central American and Caribbean Games will be held there.