Seong Hyuk Bang

1. Overview

Seong Hyuk Bang, known by the nickname “Sirasoni,” is an undefeated South Korean featherweight representing Chuncheon Team MAD. Since turning professional in 2023, Bang has rapidly established himself as one of Korea’s brightest young prospects, compiling an undefeated record while capturing the Black Combat Featherweight Championship. Known for his finishing ability and composed performances in championship fights, Bang has emerged as one of the leading young featherweights competing on the Korean regional circuit.

Fighter record available through third-party sources below:

Tapology: https://www.tapology.com/fightcenter/fighters/177130-sung-hyuk-bang

2. Early Life & Background

Publicly available information regarding Seong Hyuk Bang’s early life and martial arts background is limited. Verified sources identify him as being born on January 26, 2001, in South Korea and representing Chuncheon Team MAD. No publicly available interviews or official biographies currently provide additional details regarding his amateur career or introduction to mixed martial arts.

3. Fighting Style

Striking

Seong Hyuk Bang has built his undefeated record largely through striking. Six of his first eight professional victories have come by knockout or technical knockout, giving him a 75% knockout rate. His finishes over Gyu Jun Cho, Doo Seok Oh, Chae Hwan Kim, and Jung Hoon Park demonstrate his ability to overwhelm opponents with pressure and finishing instincts.

Grappling

Seong Hyuk Bang has not recorded a professional submission victory. Based on his documented fight record, his success has primarily come through striking and decision victories. There is currently insufficient verified public information to accurately evaluate his offensive grappling beyond his recorded results.

Fight IQ

While Seong Hyuk Bang developed a reputation early for quick finishes, his two most recent victories came by unanimous decision in championship fights. Those performances against Yoo Chan Son and Lucas Bento demonstrated an ability to maintain discipline over five-round title bouts rather than relying solely on early stoppages.

4. Professional Career

Bang made his professional debut in 2023, stopping Chae Hwan Kim by first-round TKO before adding another first-round stoppage over Doo Seok Oh later that year. He continued his rapid rise in Black Combat, where he defeated Gyu Jun Cho by second-round TKO at Black Combat 12.

In May 2025, Bang challenged undefeated Yoo Chan Son for the Black Combat Featherweight Championship at Black Combat 14. He earned a unanimous decision victory to capture the title, handing Son the first loss of his professional career.

Bang successfully defended the championship at Black Combat 16 in January 2026, defeating previously unbeaten Lucas Bento by unanimous decision. The victory improved his professional record to 8-0 while establishing him as one of the top featherweights on the Korean regional scene.

5. Career Highlights

• Black Combat Featherweight Champion
• Undefeated professional record
• Represents Chuncheon Team MAD
• Victory over previously unbeaten Yoo Chan Son to win the Black Combat Featherweight Championship
• Successful title defense against previously unbeaten Lucas Bento
• Six professional knockout victories
• Competitor in Black Combat

6. HanPunch Rating

Overall Grade: A-

Striking █████████░ 91

Grappling ███████░░░ 72

Athleticism █████████░ 90

Durability ████████░░ 83

Fight IQ █████████░ 87

Championship Potential █████████░ 92

Marketability ████████░░ 86

OVERALL SCORE: 86

HanPunch Assessment: Seong Hyuk Bang has developed into one of South Korea’s premier young featherweight prospects. His combination of finishing power, undefeated record, and championship success at Black Combat suggests a fighter with significant long-term potential. His recent championship victories also demonstrated maturity, showing he can win tactical five-round contests in addition to producing highlight-reel finishes. Continued success against stronger international opposition will determine how high his ceiling ultimately reaches.

7. Summary & Trajectory

Few Korean prospects have climbed the regional rankings as quickly as Seong Hyuk Bang. After beginning his professional career with a series of impressive stoppage victories, he successfully transitioned into championship competition by defeating two undefeated opponents in consecutive title fights.

Still only in his mid-twenties, Bang appears well positioned to become one of the next generation of Korean featherweights capable of competing on the international stage. His continued development at Chuncheon Team MAD makes him one of the division’s most promising names to watch.

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