He defeated Marc Meiling from West Germany in men's 95 kg category.
The previous Olympic champion runner Joaquim Cruz won the silver medal in men's 800 metres.
Men's Brazil Olympic football team was silver medalist led by Romário and Bebeto.
They lost the final by 2 - 1 at extra time against Soviet Union Robson Caetano was the first Brazilian sprinter to win an Olympic medal, a bronze in the men's 200 metres.
Torben's brother Lars Grael and Clinio Freitas obtained the bronze at Tornado class.