Most racedays with other riders
Riders sorted by the number of times they started in the same race as Hideharu Sasai.
| # | Rider | Number of races |
|---|---|---|
| 1 | ITOU Shougo | 1 |
| 2 | WATANABE Teppei | 1 |
| 3 | MURADE Shinichiro | 1 |
| 4 | WESTPHAL Carlo | 1 |
| 5 | HOFFMAN Nolan | 1 |
| 6 | ITO Tsubasa | 1 |
| 7 | HIROSE Satoshi | 1 |
| 8 | KAZEMI Sarai Ahad | 1 |
| 9 | CHEUNG Chun Woh | 1 |
| 10 | NOARANBAT Ariunbold | 1 |
| 11 | NODERA Hidenori | 1 |
| 12 | YAMAGUCHI Daisuke | 1 |
| 13 | AIKAWA Sho | 1 |
| 14 | EAZU Asa | 1 |
| 15 | KIMURA Masayuki | 1 |
| 16 | MITAKI Mitsunari | 1 |
| 17 | HIOKI Daisuke | 1 |
| 18 | ISE Naotox | 1 |
| 19 | HAMAGASHIRA Yasushi | 1 |
| 20 | YONEYAMA Ikki | 1 |
| 21 | CHUI Chi Sek | 1 |
| 22 | SHIMADA Yoshiaki | 1 |
| 23 | ZHIYENTAYEV Roman | 1 |
| 24 | TUMURBAATAR Ochirbaatar | 1 |
| 25 | IIJIMA Makoto | 1 |
| 26 | SUZUKI Shinri | 1 |
| 27 | KAGEYAMA Akihiro | 1 |
| 28 | NAKAZATO Satoshi | 1 |
| 29 | OBARA Syunichi | 1 |
| 30 | TSUJIMOTO Manabu | 1 |
| 31 | DAN Konei | 1 |
| 32 | MATSUKI Kenji | 1 |
| 33 | NISHIKAWA Masahiro | 1 |
| 34 | OCHI Yuki | 1 |
| 35 | OHMURA Banri | 1 |
| 36 | NII Koichiro | 1 |
| 37 | HANG YIP Chi | 1 |
| 38 | SHIMOBAYASHI Nobuyuki | 1 |
| 39 | HIGASHIBATA Nobuyuki | 1 |
| 40 | HOSOKI Ikuo | 1 |
| 41 | MUNEHISA Akihiro | 1 |
| 42 | SUGI Daisuke | 1 |
| 43 | IWAO Shinichi | 1 |
| 44 | YAMAMOTO Takashi | 1 |
| 45 | AOKI Makoto | 1 |
| 46 | MURAKAMI Daisuke | 1 |
| 47 | HIYAMA Kazuhiro | 1 |
| 48 | KISHIMOTO Yuki | 1 |
| 49 | TSUSUE Kohei | 1 |
| 50 | ONOGUCHI Kenta | 1 |