Most racedays with other riders
Riders sorted by the number of times they started in the same race as Koichi Asano.
| # | Rider | Number of races |
|---|---|---|
| 1 | YUKINARI Hideto | 3 |
| 2 | SHINBO Koki | 2 |
| 3 | IMANISHI Hisafumi | 2 |
| 4 | MANABE Kazuyuki | 2 |
| 5 | HIROSE Satoshi | 2 |
| 6 | ABE Yoshiyuki | 2 |
| 7 | AYABE Takeaki | 2 |
| 8 | OKAZAKI Kazuya | 2 |
| 9 | UCHIYAMA Yasuki | 2 |
| 10 | IIDA Teruo | 2 |
| 11 | IIJIMA Makoto | 2 |
| 12 | SUZUKI Shinri | 2 |
| 13 | CHASSOT David | 2 |
| 14 | HIROSE Yoshimasa | 2 |
| 15 | ESHITA Kentaro | 2 |
| 16 | TANAKA Taiji | 2 |
| 17 | SHINAGAWA Masahiro | 2 |
| 18 | YONEYAMA Ikki | 2 |
| 19 | TANAKA Mitsuteru | 2 |
| 20 | BAIGUDINOV Kairat | 2 |
| 21 | OKADA Tetsuya | 2 |
| 22 | FUKUSHIMA Shinichi | 2 |
| 23 | SHIBUYA Junichi | 2 |
| 24 | RIBOLZI Giuseppe | 2 |
| 25 | BEPPU Takumi | 2 |
| 26 | TAKEUCHI Makoto | 2 |
| 27 | KANO Tomoya | 2 |
| 28 | CROOKHAM Jason | 1 |
| 29 | MACDONALD Neil | 1 |
| 30 | HODNETT James | 1 |
| 31 | DE WAARD Bram | 1 |
| 32 | BŁAŻEJ Marek | 1 |
| 33 | SHIRAKI Masahiko | 1 |
| 34 | DE JAGER Francis | 1 |
| 35 | O'DONOGHUE Eddie | 1 |
| 36 | GRIFFIN Paul | 1 |
| 37 | EVANS Thomas | 1 |
| 38 | MACMAHON Kieran | 1 |
| 39 | SALIŃSKI Marek | 1 |
| 40 | CUMMINGS Steve | 1 |
| 41 | FITZGERALD Micheal | 1 |
| 42 | FOX Morgan | 1 |
| 43 | GREIPEL André | 1 |
| 44 | MCCANN David | 1 |
| 45 | KNEES Christian | 1 |
| 46 | MORIARTY Eugene | 1 |
| 47 | HEINIKAINEN Jukka | 1 |
| 48 | WHITE Nicholas | 1 |
| 49 | LOVATT Mark | 1 |
| 50 | MANNING Paul | 1 |