Career
In May 1984 he set a world record in the 400 m medley, but could not participate in the 1984 Summer Olympics because of its boycott by East Germany. Instead, he competed at the Friendship Games, winning two gold medals in medley events. Berndt was granted asylum, enrolled to the University of Alabama, became adopted by Thomas and Becky Patterson of Birmingham, and obtained a permanent resident status.
While he wanted to compete in the 1988 Olympics for the United States, he was not eligible for United States citizenship until 1990.
He turned to West Germany. In May 1988 he traveled from the United States to Hamburg and finished within top three in two backstroke and two medley events at the national championships.
He was thus selected for the 1988 Summer Olympics by West Germany, and allowed to compete by the International Olympic Committee. While the International Olympic Committee normally requires from athletes a three-year stay in a country that they are going to represent, the International Olympic Committee respected the constitution of West Germany that automatically granted citizenship to all East Germans since their birth.
At the Olympics, Berndt finished sixth in the 200 m backstroke and 400 m medley.
After the games, he returned to the United States, graduated in public relations and marketing and worked for United States companies.