Mezue ahịrịokwu na-esonụ: Hackl nwetara ngụkọta nke nrite 22 na FIL World Luge Championships, gụnyere ọla edo iri (Ndị nwoke: 1989, 1990, 1997; Mixed team: 1991, 1993, 1995, 2000, 2001, 2003, 2005), ọlaọcha iri (Ndị nwoke: 1991, 1993, 1995,
1996, 2001, 2004, 2005; Men's doubles: 1987, Mixed team: 1996, 1997), na ọla abụọ (Men's singles: 2000, Mixed team: 1999).