After Mansfeld, Borman went on to Tucson High School, where he was an honor student. He played quarterback on the junior varsity team, and then became the second-string quarterback on the varsity team. The first-string quarterback broke his arm during the first game, and was out for most of the season. Although every one of the four forward passes he attempted that year was incomplete, the team went on to win the state championship. He also started dating Susan Bugbee, a sophomore at his school.