Konplete fraz sa a: Müller te kòmanse pou ASK Vorwärts Oberhof ak BSR "Rennsteig" Oberhof. Pandan karyè li, li te genyen 14 meday nan chanpyona Mondyal Luge FIL, ki gen ladan kat lò (moun ki pa marye: 2000, ekip melanje: 1990, 1991, 1995), sèt ajan (moun ki pa marye: 1987, 1989, 1999; ekip melanje: 1989,
1996, 1997, 2000), ak twa an kwiv (Singles gason: 1985, 1990, 1996).