Background
Rottmoser was born in Rosenheim.
Rottmoser was born in Rosenheim.
He started ski mountaineering in 2000, and competed first in 2007.
2010: 9th ("ISMF men" ranking), Patrouille des Glaciers, together with Konrad Lex and Martin Echtler 2012: 1st, European Championship, sprint 5th, European Championship, relay, together with Philipp Reiter, Anton Palzer and Alexander Schuster 9th, European Championship, combination ranking 1st, Hochgrat ski rallye 2013: 1st, World Championship, sprint.