This study aim was to obtain performance profiles by means of the factors which affect the academic performance in mathematics, in a regionally representative sample of high school students in La Araucanía, Chile.In regards to methodology, statistical techniques known as random forest (RF) and classification and regression tree (CART) were used.The main factors evidenced were: self-efficacy in mathematics, parents and students' educational expectations and, as a factor of school social climate, parents' perceived violence.