| 42.07 | 26 | 43rd Hokkaido Sprint Championships | 06. - 07.02.2015 | Kushiro (JPN) |
| 41.86 | 5 | 12th World Junior Championships Memorial | 13. - 14.12.2014 | Kushiro (JPN) |
| 55.90 | 10 | 2nd Badge Test | 22.11.2014 | Kushiro (JPN) |
| 42.04 | 6 | 1st Badge Test | 15.11.2014 | Kushiro (JPN) |
| 42.03 | 64 | 2014 Obihiro Night Forest Games | 01. - 02.11.2014 | Obihiro (JPN) |
| 42.63 | 43 | 2nd Time Trial | 18.10.2014 | Obihiro (JPN) |
| 44.11 | 15 | 10th Kushiro Final Atlethic Meet | 22. - 23.02.2014 | Kushiro (JPN) |
| 43.46 | 22 | 42nd Hokkaido Sprint Championships | 14. - 16.02.2014 | Tomakomai (JPN) |
| 42.92 | 10 | 53 East Hokkaido Competition | 25.01.2014 | Nemuro (JPN) |
| 43.13 | 8 | 39th Akan Junior Competition / 21th Akan Junior Sprint Championships | 09. - 10.01.2014 | Akan (JPN) |
| 43.35 | 9 | 39th Akan Junior Competition / 21th Akan Junior Sprint Championships | 09. - 10.01.2014 | Akan (JPN) |
| 42.76 | 19 | 11th World Junior Championship 2003 Memorial | 07. - 08.12.2013 | Kushiro (JPN) |
| 42.31 | 4 | 2. Badge Test | 23.11.2013 | Kushiro (JPN) |
| 44.31 | 10 | 1. Badge Test | 16.11.2013 | Kushiro (JPN) |
| 43.06 | 77 | Obihiro Forest (mori) Competition | 02. - 03.11.2013 | Obihiro (JPN) |
| 42.39 | 38 | 2nd Time Trial | 19.10.2013 | Obihiro (JPN) |
| 42.97 | 69 | 1st Time Trial | 14.09.2013 | Obihiro (JPN) |
| 45.49 | 23 | 10th Kushiro Final Meet | 23. - 24.02.2013 | Kushiro (JPN) |
| 45.80 | 11 | 52nd East Hokkaido Competition | 26. - 27.01.2013 | Kitami (JPN) |
| 45.73 | 13 | 35th Hokkaido Junior Games | 19. - 20.01.2013 | Akan (JPN) |
| 46.01 | 21 | 10th World Junior Championship 2003 Memorial - Hokkaido Jhs And Es Competition | 08. - 09.12.2012 | Kushiro (JPN) |
| 46.14 | 65 | 2nd Time Trial | 20.10.2012 | Obihiro (JPN) |