Rainer Höft was on the gold medal winning East German team at the 1980 Moskva Olympics, winning the final after a 23-22 overtime victory against the Soviet Union. He played 96 international matches with the GDR national team and scored 169 goals. He also played on the East German team that won a bronze at the 1978 World Championships.
Domestically, Höft played with SC Dynamo Berlin. In the GDR he was a policeman and later studied sports science. After re-unification he worked with a business and tax consulting company, mainly working for high performance sportspeople.