| 44.14 | 11 | 38th Hokkaido Shonendan Competitions | 16. - 17.01.2016 | Akan (JPN) |
| 44.44 | 4 | 45th Kushiro Junior High School Competition | 26.12.2015 | Kushiro (JPN) |
| 43.62 | 15 | 13th World Junior Memorial | 12. - 13.12.2015 | Kushiro (JPN) |
| 45.08 | 11 | 2015-2016 All Kushiro Championships | 05. - 06.12.2015 | Kushiro (JPN) |
| 46.18 | 12 | 2nd Badge Test Races | 21.11.2015 | Kushiro (JPN) |
| 45.25 | 20 | 1st Badge Test Races | 14.11.2015 | Kushiro (JPN) |
| 44.68 | 17 | 12th Kushiro Final Competition | 21. - 22.02.2015 | Kushiro (JPN) |
| 43.60 | 33 | 54th East Hokkaido Tournament | 31.01.2015 | Obihiro (JPN) |
| 45.10 | 18 | 12th World Junior Championships Memorial | 13. - 14.12.2014 | Kushiro (JPN) |
| 45.26 | 12 | Kushiro Championships | 06. - 07.12.2014 | Kushiro (JPN) |
| 48.25 | 34 | 10th Kushiro Final Atlethic Meet | 22. - 23.02.2014 | Kushiro (JPN) |
| 51.63 | 36 | 35th Hokkaido Junior Games | 19. - 20.01.2013 | Akan (JPN) |
| 53.19 | 44 | 34th Hokkaido Junior Games | 14. - 15.01.2012 | Akan (JPN) |