| Patryk KULCZYNSKI | POL | 3 Races |
| Piotr KULETA | POL | 26 Races |
| István KULI | HUN | 14 Races |
| Tamás KULIFAI | HUN | 16 Races |
| Olga KULIK | RUS | 4 Races |
| Aliaksei KULIKOU | BLR | 2 Races |
| Anna KULIKOVA | KAZ | 1 Races |
| Tomoya KUMAI | JPN | 2 Races |
| Rahul KUMAR | IND | 7 Races |
| Sunny KUMAR | IND | 4 Races |
| Bruno KUMPEZ | CRO | 10 Races |
| Guntars KUNDZINS | LAT | 5 Races |
| Guntis KUNDZINS | LAT | 2 Races |
| Madara KUPCE | LAT | 6 Races |
| Oleksiy KUPIN | AZE | 48 Races |