K-1 WORLD GP 2017: Heavyweight Championship Tournament: The K-1 WORLD GP 2017 JAPAN set for November 23, 2017, at the Saitama Super Arena Community Arena in Saitama, Japan. This tournament will crown the first K-1 heavyweight champion. Competitors include Antonio Plazibat from Croatia and Ibrahim El Bouni from Morocco in the final. The event features 16 kickboxing bouts in a ring enclosure. Fans can expect a night of intense fights to determine the inaugural titleholder.