Subconcussive head impacts do not result in outward signs of neurological dysfunction, however they may have an effect on neurocognitive function. Limited research has indicated that negative changes in neurocognitive function occurs in high school football athletes as a result of one season of football. The purpose of this study was to prospectively evaluate the effects of one season of high school football on neurocognitive test scores. Results revealed a significant group and time interaction effect (p < .001) for the Verbal Memory composite score of the ImPACT test. Further analysis revealed a significant difference in the Verbal Memory score between groups at postseason (p < .01), with the football group scoring lower than the low contact group. It appears that one season of high school football may have a negative effect on the Verbal Memory composite score of the ImPACT test in high school football athletes.