At the FIL World Luge Championships, Prock won 13 medals, including five gold (Men's singles: 1987, 1996; Mixed team: 1996, 1997, 1999), four silvers (Men's singles: 1990, 1997; Mixed team: 1991, 1993), and four bronzes (Men's singles: 1995, 2001; Mixed team: 1995, 2001).