This study employed a multiple regression analysis to examine the relationship between academic aptitude and high school achievement factors to predict preservice mathematics teachers' college academic achievement. Specifically, an analysis of correlations and descriptive statistics was performed on predetermined academic factors of 67 undergraduate students enrolled as preservice mathematics teachers. In essence, a comparison of their SAT Verbal and SAT Mathematics scores, high school grade point averages, and college grade point averages disclosed significant relationships among all variables. Of special interest is that the mean high school grade point average of the preservice mathematics majors was a 3.63 (SD =.39), and the mean college GPA was 3.22 (SD =0.56), which resulted in a correlation of r = 0.53, n = 0.67, p < 0.01.