6 injured and 15 non-injured male runners were approached following competitive road races. They were requested to complete Form A of the Sixteen Personality Factor Inventory (16 PF) as well as a questionnaire specifically designed to obtain responses concerning physical and training measures. The injured runners appeared less toughminded and less forthright than the non-injured runners. Injured runners were also heavier, taller, and ran more miles per week than non-injured runners.