44.10 | 3 | Kanto Student Championships | 12. - 14.01.2002 | Fujiyoshida (JPN) |
46.30 | 18 | 21st All Japan Student Championships | 20. - 21.12.2001 | Shibukawa (JPN) |
45.20 | 8 | 8th Nighter Seiko Oval Competitions | 01. - 03.12.2001 | Fujiyoshida (JPN) |
46.43 | 14 | All Japan Student Championships | 14. - 15.12.2000 | Shibukawa (JPN) |
44.72 | 18 | All Japan Student Championships 2000 | 09. - 10.12.1999 | Shibukawa (JPN) |
45.22 | 20 | 47th Inter Highschool Games | 20. - 22.01.1998 | Kōriyama (JPN) |
44.41 | 2 | 28th Asama Selection Games | 06. - 07.12.1997 | Matsumoto (JPN) |
43.98 | 4 | Nagano Selection | 07. - 09.12.1996 | Matsumoto (JPN) |
43.87 | 15 | 45th All Japan Highschool Games 1996 | 21. - 23.01.1996 | Shibukawa (JPN) |
45.31 | 7 | All Japan Junior College Games | 08. - 09.02.1995 | Shibukawa (JPN) |