Endres later became a sports administrator, he was 1928 – 1935 treasurer in the Deutsche Bob- und Schlittenverband and 1934 – 1935 Vice Chairman, 1936 member of the OC of the Olympic Winter Games at Garmisch-Partenkirchen. He also became honourable member of the Deutsche Bob- und Schlittenverband.
|1928 Winter||33||Sankt Moritz||Bobsleigh||Men's Four/Five||Germany-1||GER||18|
|1928 Winter||33||Sankt Moritz||Bobsleigh||Germany-1||GER||Final Standings|
|1928 Winter||33||Sankt Moritz||Bobsleigh||Germany-1||GER||Run 1|
|1928 Winter||33||Sankt Moritz||Bobsleigh||Germany-1||GER||Run 2|