| 44.16 | 8 | 54th East Hokkaido Tournament | 31.01.2015 | Obihiro (JPN) |
| 45.05 | 11 | 59th Akan Championships | 26. - 27.12.2014 | Akan (JPN) |
| 45.99 | 3 | Hokkaido Sports Festival Winter Games Qualifying | 21. - 23.12.2014 | Tomakomai (JPN) |
| 43.40 | 12 | 59th All Tokachi High School Championships | 06. - 07.12.2014 | Obihiro (JPN) |
| 43.91 | 22 | 22nd Tomakomai Highland Competitions / Oji Paper Cup - Hokkaido Shimbun Press Cup | 22. - 23.11.2014 | Tomakomai (JPN) |
| 43.99 | 27 | 2014 Obihiro Night Forest Games | 01. - 02.11.2014 | Obihiro (JPN) |
| 44.04 | 19 | 2nd Time Trial | 18.10.2014 | Obihiro (JPN) |
| 44.00 | 38 | 1st Time Trial | 13.09.2014 | Obihiro (JPN) |
| 43.75 | 17 | 4th High School Competition | 22. - 23.02.2014 | Obihiro (JPN) |
| 45.29 | 17 | 42nd Hokkaido Sprint Championships | 14. - 16.02.2014 | Tomakomai (JPN) |
| 45.15 | 41 | Japanese Junior Championships 2014 | 07. - 09.02.2014 | Chikuma (JPN) |
| 46.62 | 27 | 58th Akan Speed Skating Championships | 06. - 07.01.2014 | Akan (JPN) |
| 46.26 | 20 | 66th Hokkaido High School Championships | 21. - 23.12.2013 | Kushiro (JPN) |
| 44.56 | 19 | 4th Time Trial | 07.12.2013 | Obihiro (JPN) |
| NC | - | Tokachi High School Championships | 30.11. - 01.12.2013 | Obihiro (JPN) |
| 46.37 | 11 | 21st Tomakomai Highland Competition- Hokkaido Shimbun Press/Oji Paper Cup | 16. - 17.11.2013 | Tomakomai (JPN) |
| 44.20 | 29 | Obihiro Forest (mori) Competition | 02. - 03.11.2013 | Obihiro (JPN) |
| 44.69 | 22 | 2nd Time Trial | 19.10.2013 | Obihiro (JPN) |
| 43.94 | 24 | 3rd High School Selection Competition | 23. - 24.02.2013 | Obihiro (JPN) |
| 43.67 | 24 | 41st Hokkaido Sprint Championships | 15. - 16.02.2013 | Obihiro (JPN) |
| 43.23 | 10 | 22nd Tokachi High School And Junior High School Competitions | 10.02.2013 | Obihiro (JPN) |
| 46.63 | 30 | 62nd High School Championships | 23. - 26.01.2013 | Kushiro (JPN) |
| 44.83 | 33 | Japanese Junior Championships 2013 | 11. - 13.01.2013 | Shibukawa (JPN) |
| 47.30 | 14 | 57th Akan Championships | 26. - 27.12.2012 | Akan (JPN) |
| 44.85 | 22 | 65th Hokkaido High School Championship | 22. - 24.12.2012 | Obihiro (JPN) |
| 45.19 | 12 | Tokachi High School Championship | 08. - 09.12.2012 | Obihiro (JPN) |
| 44.98 | 14 | 3rd Time Trial | 24.11.2012 | Obihiro (JPN) |
| 46.68 | 10 | 20th Tomakomai Highland Competition | 18.11.2012 | Tomakomai (JPN) |
| 44.69 | 34 | 2012 Obihiro Forest Competition | 10. - 11.11.2012 | Obihiro (JPN) |
| 45.64 | 31 | 2nd Time Trial | 20.10.2012 | Obihiro (JPN) |
| 44.84 | 30 | 1st Time Trial | 15.09.2012 | Obihiro (JPN) |
| 45.34 | 4 | 9th Kushiro Final Competition | 25. - 26.02.2012 | Kushiro (JPN) |
| 45.37 | 1 | 19th Akan Junior Sprint Championships | 04. - 05.02.2012 | Akan (JPN) |
| 46.25 | 13 | Korea-Japan Junior Competition | 18.01.2012 | Seoul (KOR) |
| 45.69 | 21 | 42nd Hokkaido Junior High School Competition | 08. - 09.01.2012 | Kushiro (JPN) |
| 45.55 | 9 | 9th World Junior Championship 2003 Memorial | 10. - 11.12.2011 | Kushiro (JPN) |
| 45.36 | 22 | 3rd Time Trial | 27.11.2011 | Obihiro (JPN) |
| 47.24 | 4 | Badge Test Meeting 1 | 20.11.2011 | Kushiro (JPN) |
| 46.75 | 6 | 8th Kushiro Final Competition | 26. - 27.02.2011 | Kushiro (JPN) |
| 45.77 | 8 | 50th East Hokkaido Competition | 05.02.2011 | Kushiro (JPN) |
| 45.99 | 24 | 41st Hokkaido Junior High School Meeting | 08. - 09.01.2011 | Obihiro (JPN) |
| 48.78 | 9 | 17th Akan Junior Sprint Championship | 13. - 14.02.2010 | Akan (JPN) |
| 47.28 | 21 | 49th Northeast Coastal Highway Conference | 06.02.2010 | Obihiro (JPN) |
| 48.30 | 5 | 37th Akan Junior Conference | 16. - 17.01.2010 | Akan (JPN) |
| 48.44 | 14 | 7th Hokkaido High School Meeting | 19. - 20.12.2009 | Kushiro (JPN) |
| 49.47 | 8 | 28th New Member Competition | 28.02.2009 | Kushiro (JPN) |
| 48.82 | 5 | 36th Akan Junior Speed Skating Conference | 13. - 14.01.2009 | Akan (JPN) |