His father was part of East Germany's junior national team in the Nordic Skiing.

As a result, he took part in a play and sports group as early as kindergarten, from which he then switched to handball and in 1999, after a sighting in physical education, to luge.

In the fall of 2005, Benecken qualified individually for three Youth A World Cups, all of which he was able to win.

On January 31, 2010 he won bronze at his fourth and last Junior World Championships in Innsbruck-Igls and thus recommended himself as a B squad qualifier for the German national luge team.

On the 22nd of August 2023, Benecken, in conjunction with his doubles collaborator Eggert, officially declared their retirement from active involvement in competitive sports.