 Pari gbolohun ti o tẹle: Müller bẹrẹ fun ASK Vorwärts Oberhof ati BSR Rennsteig Oberhof. Nigba iṣẹ rẹ, o gba awọn ami-ẹyẹ 14 ni Awọn idije Luge Agbaye FIL, pẹlu wura mẹrin Awọn ọkunrin nikan: 2000, Ẹgbẹ idapọ: 1990, 1991, 1995, fadaka meje Awọn ọkunrin nikan: 1987, 1989, 1999; Ẹgbẹ idapọ: 1989, 1996, 1997, 2000, ati idẹ mẹta Awọn ọkunrin nikan: : 1985, 1990, 1996. 