Oldest winners
| # | Rider | Age |
|---|---|---|
| 1 | Kasuga Watabe | 17y + 258d |
| 2 | Hitomi Nakajima | 17y + 76d |
| 3 | Kasuga Watabe | 16y + 266d |
| 4 | Aika Hiyoshi | |
| 5 | Aika Hiyoshi |
Youngest winners
| # | Rider | Age |
|---|---|---|
| 1 | Aika Hiyoshi | |
| 2 | Aika Hiyoshi | |
| 3 | Kasuga Watabe | 16y + 266d |
| 4 | Hitomi Nakajima | 17y + 76d |
| 5 | Kasuga Watabe | 17y + 258d |