Debutants
Youngest debutants in National Championships Japan - ITT in 2017. There are 4 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | ONODERA Rei | Utsunomiya Blitzen | 21y + 293d |
| 2 | WATANABE Shotaro | Aisan Racing Team | 22y + 298d |
| 3 | KOBAYASHI Marino | Nippo - Vini Fantini | 22y + 357d |
| 4 | YOSHIOKA Naoya | Nasu Blasen | 25y + 182d |