| DNS | - | 30th West Japanese Speed Skating Competition/56th Kansai Student Hikami Championship | 29. - 30.12.2007 | Ena (JPN) |
| 45.13 | 57 | 55th Nationwide High School Skating Championship Conference | 23. - 26.01.2006 | Tomakomai (JPN) |
| 44.44 | 19 | 32nd Aomori Sprint Championships | 04. - 05.01.2006 | Hachinohe (JPN) |
| 44.82 | 17 | 17th Northeast Hs Ch.ships | 23. - 25.12.2005 | Hachinohe (JPN) |
| 44.60 | 8 | 58th Aomori Hs Ch.ships | 14. - 15.12.2005 | Hachinohe (JPN) |
| 45.94 | 10 | 39th Aomori Selection | 07. - 08.12.2005 | Hachinohe (JPN) |
| 45.02 | 3 | 46th Aomori Hs Shinjin | 11. - 12.02.2005 | Hachinohe (JPN) |
| 50.26 | 19 | 31st Aomori Sprint Championships | 05. - 06.01.2005 | Hachinohe (JPN) |
| 46.34 | 14 | Tokoku Tournament | 24. - 26.12.2004 | Kōriyama (JPN) |
| 45.79 | 6 | 57th Aomori Hs Ch.ships | 15. - 16.12.2004 | Hachinohe (JPN) |
| 47.43 | 8 | 38th Aomori Selection | 03. - 04.12.2004 | Hachinohe (JPN) |
| 47.44 | 5 | Aomori Hs Shinjin | 14. - 15.02.2004 | Hachinohe (JPN) |
| 49.21 | 19 | Tohoku Championships 2003 | 21. - 23.12.2003 | Yamagata (JPN) |
| 46.36 | 7 | Aomori Hs Championships | 17. - 18.12.2003 | Hachinohe (JPN) |
| 46.27 | 9 | Aomori Selection | 06. - 07.12.2003 | Hachinohe (JPN) |
| 47.41 | 12 | 29th Aomori Sprint Ch.ships | 14. - 15.01.2003 | Hachinohe (JPN) |
| 45.86 | 3 | Hachinohe Jhs Wam | 08.01.2003 | Hachinohe (JPN) |
| 47.31 | 4 | Aomori JHS Competition | 11.12.2002 | Hachinohe (JPN) |
| 48.33 | 8 | Aomori Jun. High School Winter Meet | 09.01.2002 | Hachinohe (JPN) |
| 49.59 | 22 | Aomori Junior Sprint Championships | 03. - 04.01.2002 | Hachinohe (JPN) |