Yuzuki Satomi

Kickboxing Lightweight, -62.5 kg

From a ten-year-old boy who traveled weekly from Miura to Yokohama to train to the reigning K-1 Lightweight champion: “Stardust Lefty” Yuzuki Satomi will defend his newly won title against Kiyomitsu Samuel Nagasawa on September 12, 2026.

Profile

The story

Satomi’s career reflects the progression from Krush to K-1. After a long build-up at various Japanese gyms, he won the Krush Lightweight title in 2023 and developed into an aggressive fighter with a clear preference for finishes.

On February 8, 2026, he won the vacant K-1 Lightweight title. His first defense against Kiyomitsu Samuel Nagasawa at K-1 WORLD MAX 2026 will be the next step in his development as champion.

In the ring

Fighting style

Satomi fights aggressively and prefers knockouts over decisions. Frequent exchanges, high pressure, and downed opponents are recurring features of his style.

Results

Performance

K-1 Lightweight Champion at -62.5 kg since February 8, 2026; former Krush Lightweight Champion since June 16, 2023; Krush Fight of the Year (2021); ranked 7th worldwide in the super bantamweight division by Combat Press in July 2023; professional record of 25 wins, 12 losses, 1 draw, and 1 no contest over 39 fights, with 10 wins by KO and 5 losses by KO.

Stardust Lefty once dreamed of a gym in his own city — now he defends his title in the heart of Tokyo, editorial characterization.

Over the years

Timeline

• December 3, 1997: Born in Miura, Kanagawa Prefecture, Japan
• Around 2008–2009: Begins kickboxing in fifth grade and travels to Yokohama weekly to train
• December 8, 2013: Professional debut
• 2017: Joins K-1 Gym Yokohama Team Tornado under Keiji Ozaki
• September 24, 2021: Wins the semifinal of the Krush Lightweight Championship tournament; named Krush Fight of the Year
• 2021: Joins LARF Kickboxing Team NOVA
• June 16, 2023: Wins the Krush Lightweight Championship
• February 8, 2026: Wins the vacant K-1 Lightweight Championship at -62.5 kg
• September 12, 2026: Scheduled first title defense against Kiyomitsu Samuel Nagasawa at K-1 WORLD MAX 2026

Influence

Legacy

Satomi’s journey from a young kickboxer without a local gym to reigning K-1 champion exemplifies Krush’s progression to K-1. His title win makes him an important example of Japan’s developmental pathway, but his career is not yet complete and he has not yet achieved legendary status.