Most racedays with other riders
Riders sorted by the number of times they started in the same race as Keisuke Kamata.
| # | Rider | Number of races |
|---|---|---|
| 1 | SUZUKI Shinri | 14 |
| 2 | FUKUHARA Masaru | 14 |
| 3 | YAMAMOTO Masamichi | 13 |
| 4 | HIRATSUKA Yoshimitsu | 13 |
| 5 | FUKUSHIMA Shinichi | 13 |
| 6 | IINO Yoshinori | 13 |
| 7 | MIYAZAWA Takashi | 12 |
| 8 | NODERA Hidenori | 12 |
| 9 | KANO Tomoya | 12 |
| 10 | YONEYAMA Ikki | 12 |
| 11 | SUZUKI Kenichi | 12 |
| 12 | SHIMIZU Miyataka | 12 |
| 13 | MANABE Kazuyuki | 11 |
| 14 | NAGANUMA Takayuki | 11 |
| 15 | IIJIMA Makoto | 11 |
| 16 | SANO Junya | 10 |
| 17 | MUKAIGAWA Naoki | 10 |
| 18 | ABE Yoshiyuki | 10 |
| 19 | NISHITANI Taiji | 10 |
| 20 | MATSUMURA Mitsuhiro | 9 |
| 21 | HATANAKA Yusuke | 9 |
| 22 | WAKUMOTO Masaki | 9 |
| 23 | KAKINUMA Akira | 9 |
| 24 | UCHIMA Kohei | 9 |
| 25 | HIOKI Daisuke | 9 |
| 26 | MORI Kazuhiro | 9 |
| 27 | BEPPU Takumi | 9 |
| 28 | KODAN Akira | 9 |
| 29 | IWASHIMA Keita | 9 |
| 30 | AYABE Takeaki | 9 |
| 31 | YEUNG Ronald | 8 |
| 32 | NITO Yasuhiro | 8 |
| 33 | HIRABAYASHI Masaki | 8 |
| 34 | ARASHIRO Yukiya | 8 |
| 35 | INOUE Kazuo | 8 |
| 36 | NAKAMURA Makoto | 8 |
| 37 | SUZUKI Yuzuru | 8 |
| 38 | TSUJI Yoshimitsu | 8 |
| 39 | KO Siu Wai | 7 |
| 40 | OBATA Kaoru | 7 |
| 41 | NAKAJIMA Yasuharu | 7 |
| 42 | YAMANE Masafumi | 7 |
| 43 | FUKUDA Shinpei | 7 |
| 44 | NONAKA Ryoma | 7 |
| 45 | YAMASHITA Takahiro | 7 |
| 46 | MASUDA Nariyuki | 7 |
| 47 | SAITO Shota | 7 |
| 48 | HASHIKAWA Ken | 7 |
| 49 | SHINAGAWA Masahiro | 7 |
| 50 | ITO Masakazu | 7 |