Objective: Limited studies have addressed student-athletes diagnosed with ADHD and their performance on computerized neurocognitive tests. The purpose of the current study was to examine performance on the ImPACT®, a commonly used computerized neurocognitive test, with high school student-athletes with a self-reported diagnosis of ADHD compared to a matched-control group without ADHD. Method: Participants (N = 76) consisted of male and female high school student-athletes between 14 and 18 years of age. Subjects completed the ImPACT® baseline assessment prior to their respective 2011 and 2014 sport seasons and possessed a valid baseline assessment as determined by ImPACT's invalidity criteria. A retrospective analysis identified subjects who self-reported a diagnosis of ADHD (n = 38) who were matched to healthy participants (n = 38) without ADHD based on height, weight, and handedness, age and race. Independent t-tests were used to assess differences between groups for ImPACT's Visual and Verbal Memory, Visual Motor Speed, Reaction Time, Impulse Control and Total Symptom scores and demographic variables with α = .05. Results: We observed significant differences between groups on Impulse Control (t (74) = 2.73, p < .01) and Total Symptoms (t (74)= 2.63, p = .01). No other significant differences were observed. Conclusion: Our results differ from previous reports that student-athletes diagnosed with ADHD achieve lower scores on ImPACT's neurocognitive indices compared to those without ADHD. However, we did observe those with ADHD obtained significantly higher Impulse Control and Total Symptom scores. Future research is needed further understand ImPACT's clinical utility in student-athletes with ADHD.