NameSeasonsWorld ChampionshipsMotoGP Wins500cc Wins350cc WinsMoto2 Wins250cc WinsMoto3 Wins125cc Wins80cc Wins50cc WinsMotoE Wins Mika Kallio2001-202000004507000 Hideo Kanaya1967, 1972-1973, 197500110100000 Maximilian Kappler2014-201600000000000 Takazumi Katayama1974, 1976-1985, 1988-19891 350cc - 0170300000 Daijiro Kato1996-20031 250cc - 00001700000 Ken Kavanagh1951-1956, 1959-196000140000000 Meikon Kawakami201900000000000 Joel Kelso2021-00000000000 Sean Dylan Kelly2019, 2022-202300000000000 Danny Kent2010-20181 Moto3 - 0000080000 Henk van Kessel1972-1976, 1978-19861 50cc - 0000000070 Zulfahmi Khairuddin2009-2015, 201800000000000 Ewald Kluge195200000000000 Bruno Kneubühler1972-198900010003010 John Kocinski1988-1994, 1998-19991 250cc - 0400900000 Maximilian Kofler2017-202100000000000 Pentti Korhonen1969-1970, 1972-197900010000000 Jakub Kornfeil2009-202000000000000 Tomoyoshi Koyama2000, 2003-2012, 2014-201500000001000 Decha Kraisart2000, 2013-201400000000000 Krittapat Keankum202300000000000 Randy Krummenacher2006-2015, 202300000000001 Keminth Kubo2021-202200000000000 Yuki Kunii2019-2021, 202500000000000 Keisuke Kurihara201500000000000 Hiroaki Kuzuhara2003, 2005-200600000000000