43.86 | 13 | Japanese Junior Sprint Championships 1998 | 31.01. - 01.02.1998 | Hachinohe (JPN) |
43.99 | 15 | 47th Inter Highschool Games | 20. - 22.01.1998 | Kōriyama (JPN) |
42.98 | 3 | Nagano prefecture hs championships | 16. - 17.12.1997 | Matsumoto (JPN) |
43.98 | 3 | All Japan Junior College Games | 05. - 06.02.1997 | Nikkō (JPN) |
43.46 | 1 | Nagano Junior Selection | 29. - 30.12.1996 | Matsumoto (JPN) |
44.77 | 17 | Japanese Junior Sprint Championships 1996 | 09. - 10.02.1996 | Okaya (JPN) |
44.69 | 5 | 16th All Japan Junior Highschool Games 1996 | 04. - 05.02.1996 | Kōriyama (JPN) |