Neuropsychological, off-road, and on-road testing were used to assess the driving skill of a stroke patient to determine whether he could drive safely. Driving risk could not be detected by neuropsychological testing, but was detected with the Useful Field of View (UFOV) test and a driving simulator and confirmed with on-road testing. Although it may be more effective to use on-road testing or a driving simulator to assess whether a stroke patient is competent to drive, our results suggest that UFOV may be more a more accessible and cost-effective method for detecting driving risk due to mild cognitive dysfunction.