| 39.77 | 14 | 36th National Junior High School Competitions | 01. - 02.02.2016 | Nagano (JPN) |
| 41.03 | 7 | 46th Hokkaido Junior High School Competition | 09. - 10.01.2016 | Tomakomai (JPN) |
| 40.90 | 4 | 13th World Junior Memorial | 12. - 13.12.2015 | Kushiro (JPN) |
| 41.75 | 6 | 2nd Badge Test Races | 21.11.2015 | Kushiro (JPN) |
| 41.70 | 8 | 1st Badge Test Races | 14.11.2015 | Kushiro (JPN) |
| 40.90 | 79 | Obihiro Forest Competition | 07. - 08.11.2015 | Obihiro (JPN) |
| 41.59 | 49 | 1st Time Trial | 17.10.2015 | Obihiro (JPN) |
| 42.53 | 9 | 12th Kushiro Final Competition | 21. - 22.02.2015 | Kushiro (JPN) |
| 42.46 | 14 | 45th Hokkaido Junior High School Competition | 11. - 12.01.2015 | Sapporo (JPN) |
| 43.59 | 2 | 59th Akan Championships | 26. - 27.12.2014 | Akan (JPN) |
| 42.30 | 12 | 12th World Junior Championships Memorial | 13. - 14.12.2014 | Kushiro (JPN) |
| 42.79 | 6 | 2nd Badge Test | 22.11.2014 | Kushiro (JPN) |
| 42.80 | 9 | 1st Badge Test | 15.11.2014 | Kushiro (JPN) |
| 42.97 | 69 | 2014 Obihiro Night Forest Games | 01. - 02.11.2014 | Obihiro (JPN) |
| 42.69 | 44 | 2nd Time Trial | 18.10.2014 | Obihiro (JPN) |
| 44.44 | 19 | 10th Kushiro Final Atlethic Meet | 22. - 23.02.2014 | Kushiro (JPN) |
| 43.29 | 9 | 39th Akan Junior Competition / 21th Akan Junior Sprint Championships | 09. - 10.01.2014 | Akan (JPN) |
| 44.14 | 15 | 39th Akan Junior Competition / 21th Akan Junior Sprint Championships | 09. - 10.01.2014 | Akan (JPN) |
| 43.19 | 34 | 3rd Time Trial | 23. - 24.11.2013 | Obihiro (JPN) |
| 45.04 | 73 | 1st Time Trial | 14.09.2013 | Obihiro (JPN) |
| 47.13 | 3 | 10th World Junior Championship 2003 Memorial - Hokkaido Jhs And Es Competition | 08. - 09.12.2012 | Kushiro (JPN) |