Lengkepan kalimah di handap ieu: Hackl meunang jumlahna 22 medali di FIL Dunya Luge Championships, kaasup sapuluh emas (Singles Lalaki: 1989, 1990, 1997; Campuran tim: 1991, 1993, 1995, 2000,
2001, 2003, 2005), sapuluh medali pérak (Singles Lalaki: 1991, 1993, 1995, 1996, 2001, 2004, 2005; Men's doubles: 1987, Tim Campuran: 1996, 1997), jeung dua medali perunggu (Singles Lalaki: 2000, Tim Campuran: 1999).