FIGHT ANNOUNCED K-1 announces Kouzi vs. Nagasawa for lightweight title on Dec. 29 in Yokohama

The bottom line

K-1 announced Kouzi will challenge lightweight champion Samuel Nagasawa on Dec. 29 at K-1 World MAX 2026, his first K-1 fight in about seven years.

From 2 reports

Latest K-1 makes Kouzi vs. Nagasawa official for Dec. 29 title fight

K-1 announces Kouzi vs. Nagasawa for lightweight title on Dec. 29 in Yokohama
Photo via Gong Kakutogi · added

What we know

  • Kouzi will challenge champion Samuel Nagasawa for the K-1 World GP lightweight title on Dec. 29 at Yokohama Buntai, K-1 announced.
  • The title bout is three three-minute rounds with one extra round.
  • Kouzi's last K-1 fight was in November 2019 against Seiya Kawahara.
  • K-1 formally offered Kouzi the fight on Oct. 23 with an answer requested by the night of Oct. 25; the Sept. 12 challenge began the dispute.
  • Yuzuki Satomi vs. Hiroki Akuto is also announced at lightweight on the Dec. 29 card.
K-1 announced at an Oct. 27 press conference in Tokyo that Kouzi (TEAM ONE) will challenge lightweight champion Samuel Nagasawa (B Make) for the K-1 World GP title on Dec. 29 at Yokohama Buntai, on the first announced card of K-1 World MAX 2026. The bout is scheduled for three three-minute rounds with one extra round.

The fight follows a public exchange. At the Sept. 12 K-1 World MAX, Kouzi, a guest commentator, issued a challenge to K-1 producer Genki Sudo, and Nagasawa said he would accept. The two then traded posts on X. On Oct. 23, K-1 formally offered Kouzi the title fight and asked for an answer by the night of Oct. 25.

Kouzi last fought in K-1 in November 2019 against Seiya Kawahara, about seven years ago. His last kickboxing bout was in April 2023 against Ryusei Ashizawa, and his last non-exhibition fight was an MMA bout against Ashizawa in July 2024.

Yuzuki Satomi (team NOVA) vs. Hiroki Akuto (Akuto Dojo) was also announced at lightweight.
 
Summary
K-1 announced Kouzi will challenge lightweight champion Samuel Nagasawa on Dec. 29 at K-1 World MAX 2026, his first K-1 fight in about seven years.
Key points (one per line)
Kouzi challenges champion Samuel Nagasawa for the K-1 World GP lightweight title, three three-minute rounds plus a possible extra round.
K-1 World MAX 2026 is on Dec. 29 at Yokohama Buntai.
It is Kouzi's first K-1 fight since November 2019, about seven years.
Yuzuki Satomi vs. Hiroki Akuto was also announced at lightweight.
Also reported by (Name | URL per line)
Gong Kakutogi | https://gonkaku.jp/articles/25226
Gong Kakutogi | https://gonkaku.jp/articles/25229
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Photo via Gong Kakutogi
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