He won as the first German at the Olympics and the Jigoro Kano Cup.

[4] These games were boycotted by some countries, including Japan, whose Yasuhiro Yamashita and Sumio Endo were the reigning World Heavyweight and Open Class champions respectively.

To the surprise of all judo experts, he defeated the favored opponents and won the final battle against Angelo Parisi of France, who was twelve kilos heavier than him.

He wore the nanadan (七段:ななだん): seventh degree black belt (also, shichidan), a component of the Dan rank.

[7] Media related to Dietmar Lorenz at Wikimedia Commons