Rubuta ci gaba don wannan sakin layi - Baya ga wasannin Olympics a cikin wasan tsere, Erdmann ya lashe lambobin yabo goma a Gasar Cin Kofin Duniya ta FIL, ciki har da zinare bakwai (Mutanen mata: 1989, 1991, 1997; Mixed team: 1990, 1991, 1993, 1995) da azurfa uku (Mutanen mata: 1995, 1996; Mixed team: 1989). Ta kuma lashe lambobin yabo guda bakwai a gasar zakarun Turai ta FIL, ciki har da zinare shida (Mutanen mata: 1990, 1992; Mixed team: 1990, 1992, 1996
, 1998) da tagulla ɗaya (mata masu zaman kansu: 1998). Erdmann ta lashe lambar yabo ta gaba daya ta gasar cin kofin duniya ta Luge a cikin mata sau biyu (1990<unk>91, 1991<unk>92).