Oldest winners
| # | Rider | Age |
|---|---|---|
| 1 | Toki Sawada | 17y + 333d |
| 2 | Yujiro Murakami | 17y + 268d |
| 3 | Koutarou Murakami | 17y + 226d |
| 4 | Kota Yokoyama | 17y + 112d |
| 5 | Sho Takahashi | 17y + 41d |
| 6 | Shingen Yunoki | 17y + 37d |
| 7 | Ryo Takeuchi | 17y + 34d |
| 8 | Hijiri Oda | 17y + 13d |
| 9 | Tadaaki Nakai | 16y + 361d |
| 10 | Toki Sawada | 16y + 334d |
| 11 | Yujiro Murakami | 16y + 276d |
| 12 | Koshi Narita | 16y + 161d |
| 13 | Taisei Hino | 16y + 106d |
| 14 | Daiki Kojima |
Youngest winners
| # | Rider | Age |
|---|---|---|
| 1 | Daiki Kojima | |
| 2 | Taisei Hino | 16y + 106d |
| 3 | Koshi Narita | 16y + 161d |
| 4 | Yujiro Murakami | 16y + 276d |
| 5 | Toki Sawada | 16y + 334d |
| 6 | Tadaaki Nakai | 16y + 361d |
| 7 | Hijiri Oda | 17y + 13d |
| 8 | Ryo Takeuchi | 17y + 34d |
| 9 | Shingen Yunoki | 17y + 37d |
| 10 | Sho Takahashi | 17y + 41d |
| 11 | Kota Yokoyama | 17y + 112d |
| 12 | Koutarou Murakami | 17y + 226d |
| 13 | Yujiro Murakami | 17y + 268d |
| 14 | Toki Sawada | 17y + 333d |