Niedernhuber tun gba awọn ami ẹyẹ meje ni FIL World Luge Championships pẹlu wura kan (Awọn ẹgbẹ apapo: 2004), fadaka mẹrin (Awọn obirin nikan: 1999, 2000, 2004, 2005), ati idẹ meji (Awọn obirin nikan:
2001, 2003). O tun gba ami ẹyẹ idẹ mẹta ni iṣẹlẹ awọn obinrin nikan ni FIL European Luge Championships (2000, 2002, 2006).