Pedzisa mutsara unotevera: Hackl akawana mibairo inosvika makumi maviri nemaviri paFIL World Luge Championships, kusanganisira gumi yegoridhe (Varume vega: 1989, 1990, 1997; Chikwata chakasanganiswa: 1991, 1993, 1995, 2000, 2001, 2003, 2005), sirivheri gumi (Varume vega: 1991, 1993, 1995,
1996, 2001, 2004, 2005; Men's doubles: 1987, Mixed team: 1996, 1997), uye bronze mbiri (Men's singles: 2000, Mixed team: 1999).