48.23 | 17 | 49th Nagano Hs Championships | 15. - 16.12.2004 | Matsumoto (JPN) |
48.02 | 17 | 48th nagano prefecture hs championships | 17. - 18.12.2003 | Chikuma (JPN) |
46.18 | 3 | 41st Nagano Prefecture Junior High School Competition Meeting | 11. - 12.01.2003 | Chikuma (JPN) |
48.81 | 9 | Nagano Jhs Chunanshin | 21.01.2001 | Chikuma (JPN) |
49.42 | 16 | Nagano Jhs Winter Athletic Meet | 07. - 08.01.2001 | Matsumoto (JPN) |
52.15 | 7 | Heisei Championships | 03. - 04.01.2001 | Koumi (JPN) |
47.67 | 6 | 2000 Nagano Prefecture Junior Competition Meeting | 24.12.2000 | Okaya (JPN) |
54.97 | 8 | Cup Competition | 26.11.2000 | Okaya (JPN) |
54.97 | 8 | JHS Cup Competition | 16.11.2000 | Okaya (JPN) |