As a performance psychologist, Jack Stark provides psychological and performance enhancement training to elite athletes at the collegiate, professional and Olympic levels. He served as the team psychologist (1989-2004) for the University of Nebraska Cornhusker football program.
During his tenure Nebraska won 88% of its games including 3 national championships and had the highest winning percentage in the 1990s. He is in his 11th year as the team psychologist for NASCAR’s premier Hendrick Motorsports Team (winner of 5 straight national championships).
He maintains a practice as a licensed clinical psychologist and has provided assistance to more than 10,000 individuals. He served on the faculty of the Nebraska Medical Center’s Departments of Psychiatry and Pediatrics as a tenured professor of medical psychology.
He is founder and director of Performance Enhancement Group and consults to F-500 executives. He has made over 1,000 presentations on Leadership and Teamwork.