| 42.61 | 5 | Internationales Rennen | 21. - 22.03.1988 | Alma Ata (KAZ) |
| 43.12 | 1 | 7th All Japan Student Championships | 09. - 10.02.1988 | Shibukawa (JPN) |
| 42.52 | 5 | Japanese Sprint Championships 1988 | 08. - 09.01.1988 | Fujiyoshida (JPN) |
| 42.38 | 1 | 20th Kanto Intercollege | 02. - 03.01.1988 | Karuizawa (JPN) |
| 42.62 | 1 | 60th All Japan University Games | 23. - 25.12.1987 | Nikkō (JPN) |
| 42.40 | 3 | 18th Asama Selection | 10. - 11.12.1987 | Matsumoto (JPN) |
| 43.67 | 2 | 11th Makomanai Selection | 05. - 06.12.1987 | Sapporo (JPN) |
| 44.54 | 10 | Japanese Sprint Championships 1987 | 09. - 10.01.1987 | Morioka (JPN) |
| 41.97 | 1 | 19th Kanto Intercollege | 03. - 04.01.1987 | Karuizawa (JPN) |
| 42.86 | 1 | 59th All Japan Student Games | 24. - 26.12.1986 | Nikkō (JPN) |
| 42.50 | 3 | 17th Asama Selection | 12. - 13.12.1986 | Matsumoto (JPN) |
| 43.56 | 3 | 10th Makomanai Games | 06. - 07.12.1986 | Sapporo (JPN) |
| 42.64 | 1 | 5th Japanese Student Championships | 13. - 14.02.1986 | Shibukawa (JPN) |
| 42.87 | 8 | Japanese Sprint Championships 1986 | 17. - 18.01.1986 | Karuizawa (JPN) |
| 41.91 | 1 | Kanto University Championships | 04. - 05.01.1986 | Karuizawa (JPN) |
| 43.60 | 1 | 58th All Japan University Games | 18. - 20.12.1985 | Nikkō (JPN) |
| 42.43 | 3 | 16th Asama Selection Incl 11th Japan-China Friendship-Meeting | 13. - 14.12.1985 | Matsumoto (JPN) |
| 43.54 | 3 | 9th Makomanai Selection | 07. - 08.12.1985 | Sapporo (JPN) |
| 44.63 | 1 | 4th All Japan Student Championships | 13. - 14.02.1985 | Shibukawa (JPN) |
| 43.54 | 7 | Japanese Sprint Championships 1985 | 18. - 19.01.1985 | Karuizawa (JPN) |
| 44.00 | 1 | 57th All Japan Student Games | 19. - 21.12.1984 | Nikkō (JPN) |
| 42.51 | 3 | 15th Asama-Selection | 07. - 08.12.1984 | Matsumoto (JPN) |
| 43.93 | 7 | 8th Makomanai-Selection | 01. - 02.12.1984 | Sapporo (JPN) |
| NC | - | All Shinshu | 12. - 13.02.1984 | Karuizawa (JPN) |
| 44.56 | 4 | 33rd All Japan High-School Games | 24. - 25.01.1984 | Kushiro (JPN) |
| 43.30 | 1 | Nagano-District Highschool | 18. - 20.12.1983 | Karuizawa (JPN) |
| 43.61 | 7 | 14th Asama-Games Incl 9th Japan-China Friendships Meeting | 08. - 09.12.1983 | Matsumoto (JPN) |
| 43.40 | 1 | Nagano Highschool | 27. - 28.02.1983 | Karuizawa (JPN) |
| NC | - | All Shinshu | 08. - 09.02.1983 | Suwa (JPN) |
| 45.21 | 5 | 32nd All Japan High-School | 21. - 23.01.1983 | Morioka (JPN) |
| 44.90 | 4 | Junior Race | 08. - 09.02.1982 | Karuizawa (JPN) |
| 45.20 | 9 | Japanese Junior Allround Championships 1982 | 02. - 03.02.1982 | Shibukawa (JPN) |
| 45.64 | 4 | 31st All Japan High School Students Championships | 21. - 23.01.1982 | Hachinohe (JPN) |