44.48 | 18 | Japanese Junior Sprint Championships 1998 | 31.01. - 01.02.1998 | Hachinohe (JPN) |
43.96 | 14 | 47th Inter Highschool Games | 20. - 22.01.1998 | Kōriyama (JPN) |
43.69 | 4 | Nagano prefecture hs championships | 16. - 17.12.1997 | Matsumoto (JPN) |
44.51 | 4 | Nagano prefecture hs championships | 17. - 18.12.1996 | Matsumoto (JPN) |
44.09 | 12 | Japanese Junior Sprint Championships 1996 | 09. - 10.02.1996 | Okaya (JPN) |
43.52 | 13 | 45th All Japan Highschool Games 1996 | 21. - 23.01.1996 | Shibukawa (JPN) |
43.99 | 2 | Nagano District Sprint Championships | 16. - 17.02.1995 | Karuizawa (JPN) |
44.87 | 1 | Nagano District Sprint Championships | 17. - 18.02.1994 | Karuizawa (JPN) |