This is a list of events held and scheduled by the K-1, a kickboxing and mixed martial arts organization based in Japan. The list consists of all the official K-1 World Grand Prix events, regional preliminaries as well as other kickboxing events fought under the K-1 Rules 8 man tournament format. The first event, K-1 Sanctuary I, took place on March 30, 1993 at Korakuen Hall in Tokyo, Japan.