46.67 | 14 | 71st Inter-College Games | 07. - 09.01.1999 | Nikkō (JPN) |
48.17 | 14 | 70th Japanese Student Hikami Championship (Inter College Championships) | 05. - 07.01.1998 | Tomakomai (JPN) |
50.07 | 4 | All Japan University Games | 06. - 08.01.1997 | Hachinohe (JPN) |
43.58 | 1 | Hokkaido Student Games | 01. - 04.01.1997 | Karuizawa (JPN) |
44.38 | 25 | Japanese Sprint Championships 1997 | 20. - 21.12.1996 | Nagano (JPN) |
43.31 | 5 | Japanese Junior Sprint Championships 1996 | 09. - 10.02.1996 | Okaya (JPN) |
43.31 | 11 | 45th All Japan Highschool Games 1996 | 21. - 23.01.1996 | Shibukawa (JPN) |
43.44 | 2 | Nagano HS prefecture championships | 19. - 21.12.1995 | Karuizawa (JPN) |
43.18 | 1 | Nagano HS Competition | 02. - 03.12.1995 | Chikuma (JPN) |
44.04 | 3 | Nagano District Sprint Championships | 16. - 17.02.1995 | Karuizawa (JPN) |
45.15 | 15 | Japanese Junior Sprint Championships 1995 | 04. - 05.02.1995 | Morioka (JPN) |
43.00 | 2 | Nagano District Sprint Championships | 17. - 18.02.1994 | Karuizawa (JPN) |
45.18 | 10 | All Japan Highschool Games | 19. - 21.01.1994 | Kōriyama (JPN) |
44.76 | 1 | Japan-Korea Junior Country-Match | 29. - 30.12.1992 | Matsumoto (JPN) |
45.23 | 9 | All Shinshu Championships | 13. - 14.02.1992 | Karuizawa (JPN) |