Oldest winners
| # | Rider | Age |
|---|---|---|
| 1 | Toki Sawada | 21y + 328d |
| 2 | Yasuki Uchiyama | 21y + 312d |
| 3 | Koutarou Murakami | 21y + 228d |
| 4 | Kota Yokoyama | 21y + 114d |
| 5 | Hijiri Oda | 21y + 15d |
| 6 | Tatsuumi Soejima | 20y + 209d |
| 7 | Kota Yokoyama | 19y + 116d |
| 8 | Kohei Yamamoto | 19y + 114d |
| 9 | Hijiri Oda | 19y + 17d |
| 10 | Raito Suzuki | 18y + 316d |
| 11 | Koutarou Murakami | 18y + 225d |
| 12 | Shingen Yunoki | 18y + 71d |
| 13 | Kouhei Yamamoto |
Youngest winners
| # | Rider | Age |
|---|---|---|
| 1 | Kouhei Yamamoto | |
| 2 | Shingen Yunoki | 18y + 71d |
| 3 | Koutarou Murakami | 18y + 225d |
| 4 | Raito Suzuki | 18y + 316d |
| 5 | Hijiri Oda | 19y + 17d |
| 6 | Kohei Yamamoto | 19y + 114d |
| 7 | Kota Yokoyama | 19y + 116d |
| 8 | Tatsuumi Soejima | 20y + 209d |
| 9 | Hijiri Oda | 21y + 15d |
| 10 | Kota Yokoyama | 21y + 114d |
| 11 | Koutarou Murakami | 21y + 228d |
| 12 | Yasuki Uchiyama | 21y + 312d |
| 13 | Toki Sawada | 21y + 328d |