Claim: Kazuhiko Yamazaki competed in 16 competitions from 1990-2000.
Evidence: 1990 Asian Junior Championships World Junior Championships 1991 Universiade World Championships 1992 Olympic Games World Cup 1993 Universiade 1994 World Cup 1995 World Championships Universiade 1996 Olympic Games 1997 East Asian Games World Championships 1998 Asian Championships 1999 World Championships 2000 Olympic Games Japanese Championships 400 m hurdles: 1996, 1999 The Japan Championships in Athletics (日本陸上競技選手権大会, Nihon Rikujō Kyōgi Sensyuken Taikai) is an annual outdoor track and field competition, organized by Japan Association of Athletics Federations.