| 48.04 | 3 | 40th Akan Junior Tournament | 24. - 25.01.2015 | Akan (JPN) |
| 47.53 | 8 | 12th World Junior Championships Memorial | 13. - 14.12.2014 | Kushiro (JPN) |
| 53.77 | 1 | 19th Central Hokkaido Sprint Championships | 25. - 26.01.2014 | Asahikawa (JPN) |
| 1:23.88 | 17 | 36th Hokkaido Boy Scouts Competition (shonendan) | 18. - 19.01.2014 | Asahikawa (JPN) |
| 50.29 | 48 | 39th Akan Junior Competition / 21th Akan Junior Sprint Championships | 09. - 10.01.2014 | Akan (JPN) |
| 56.41 | 19 | 20th Akan Junior Sprint Championships | 02. - 03.02.2013 | Akan (JPN) |
| 59.78 | 4 | 18th Central Hokkaido Sprint Championships | 26. - 27.01.2013 | Asahikawa (JPN) |
| 59.17 | 25 | 19th Akan Junior Sprint Championships | 04. - 05.02.2012 | Akan (JPN) |
| 1:04.98 | 4 | 17th Chubu Hokkaido Sprint Championships | 21. - 22.01.2012 | Asahikawa (JPN) |