Issei Ishii

K-1 World MAX 2025 Preview: Champions To Be Crowned Across Four Weight Classes in Tokyo

Tetsuya Yamato to Defend K-1 Super Lightweight Title Against Kenta Hayashi on Mar. 12

K-1 World Grand Prix Osaka Results: Toma Kuroda Wins Three Fights in One Night and Beats Issei Ishii in Thrilling Final to Become the Inaugural K-1 Bantamweight Champion

K-1 Announces Inaugural Bantamweight Grand Prix for Dec. 3