K-1 WORLD GP 2023: Middleweight Championship Tournament: The K-1 WORLD GP 2023 1st Middleweight Championship Tournament takes place on June 3, 2023, at Yokohama Budokan in Yokohama, Japan. This kickboxing event features an eight-man Middleweight Championship Tournament with fighters like Hassan Toy, Shintaro Matsukura, Igor Silva, and Hiromi Wajima. The tournament concludes with Hassan Toy facing Shintaro Matsukura in the final to crown the inaugural champion. Additional bouts include K-Jee vs. Viktor Hugo and Kana Morimoto vs. Funda Alkayis on the card. It’s a historic night for K-1, marking its 30th anniversary with the first middleweight title.