UCI Motor-paced World ChampionshipsUCI Track Cycling World Championships in motor-paced racing were conducted between 1893 and 1992 for amateurs and 1895–1994 for professionals. These are the results:Amateurs (1893–1992) In 1988 Vincenzo Colamartino and Roland Renn were disqualified for doping.Professionals (1895–1994)Source: