Overview
Seong Woong Kim (김성웅), known professionally as “Viper,” is a South Korean professional mixed martial artist competing in the flyweight division.
Born on August 2, 1996, Seong Woong Kim represents Von Jiu Jitsu and has competed professionally since 2022. Standing 5’7″ (170 cm), he has built his reputation through an aggressive, entertaining style and his willingness to fight the best opponents available.
Much of Kim’s professional career has taken place under the Black Combat banner, where he has appeared in championship bouts, main events, and featured fights. His résumé includes victories over experienced Korean veterans and appearances against respected international opponents from Japan and Brazil.
Seong Woong Kim has become one of the promotion’s most active flyweights, consistently competing in meaningful matchups that have helped establish Black Combat’s 125-pound division.
Early Life & Background
Relatively little verified public information has been released regarding Seong Woong Kim’s upbringing, education, or introduction to martial arts. Publicly available records identify him as being born in South Korea on August 2, 1996, but details regarding his hometown and early athletic career have not been widely published.
Seong Woong Kim eventually joined Von Jiu Jitsu, where he developed into a professional mixed martial artist. His progression through the Korean regional scene ultimately led to opportunities with Black Combat shortly after the promotion’s launch in 2022. Since then, he has remained one of the organization’s most active competitors.
Fighting Style
Seong Woong Kim is a well-rounded flyweight capable of winning fights in multiple ways. His professional victories include knockouts, submissions, and decisions, demonstrating versatility rather than reliance on a single specialty. Approximately half of his career victories have come by knockout or technical knockout, while he also owns submission victories, including a notable guillotine choke finish over Won Hee Jung in a Black Combat flyweight title bout.
His style is characterized by:
- Aggressive forward pressure.
- Strong clinch striking.
- Opportunistic submission attacks.
- Durability over three-round contests.
- Comfort competing at a high pace.
Throughout his Black Combat tenure, Kim has demonstrated a willingness to exchange strikes while maintaining enough grappling ability to capitalize when opponents make mistakes.
Professional Career
Seong Woong Kim made his professional debut in 2022, shortly after the launch of Black Combat. His early run featured first-round stoppage victories over Do Han Jung and Do Dam Park before quickly moving into increasingly difficult competition.
One of the defining moments of his career came at Black Combat 7, where he submitted Won Hee Jung with a second-round guillotine choke in a bout contested for the Black Combat Flyweight Championship. Although later championship opportunities resulted in setbacks, the performance demonstrated Kim’s ability to compete at the top level of the organization.
Seong Woong Kim also represented Black Combat internationally when he faced Takahiro Komakine at DEEP 115 Impact in Japan before later avenging that loss with a spectacular first-round upkick knockout at Black Combat 10. The victory became one of the most memorable finishes in promotion history and drew international attention through highlight compilations.
Subsequent wins over Kang Nam Lee, Won Hee Jung, and Tae Ho Park further established Kim as a consistent contender within the Black Combat flyweight division. Even in defeat, he continued accepting difficult assignments against rising talents such as Gabriel Rodrigues and Sung Hoon Woo.
Career Highlights
- Professional MMA competitor since 2022.
- Longtime Black Combat flyweight competitor.
- Competed for the Black Combat Flyweight Championship.
- Defeated Won Hee Jung via second-round guillotine submission in a title bout.
- Earned a highlight-reel first-round upkick knockout over Takahiro Komakine at Black Combat 10.
- Main-event winner against Kang Nam Lee at Black Combat 9.
- Competed internationally under the DEEP banner in Japan.
Summary & Trajectory
Seong Woong Kim has become one of the defining competitors of Black Combat’s flyweight division through consistency, activity, and a willingness to face elite opposition. While his professional record has fluctuated against increasingly difficult competition, his résumé reflects a fighter who has rarely taken an easy path.
Still in his athletic prime, Kim remains an important figure within Korean MMA. His combination of finishing ability, championship experience, and willingness to compete against both domestic and international opponents makes him a valuable veteran in one of the country’s deepest weight classes. Whether competing for another title opportunity or serving as a benchmark for the next generation of flyweights, “Viper” continues to be one of Black Combat’s most respected and battle-tested athletes.
Seong Woong Kim has established himself as one of Black Combat's most recognizable flyweights through activity, durability, and consistent competition against quality opposition. Competing under the nickname "Viper," Kim has become a regular fixture on the promotion's main cards while facing many of the division's top domestic and international fighters. Although his professional record sits near .500, it does not fully reflect the level of competition he has accepted throughout his career.
Kim's willingness to take difficult matchups—including title fights, international cross-promotional contests, and bouts against undefeated prospects—has earned him respect within the Korean MMA community. Rather than carefully managing his record, he has consistently tested himself against increasingly stronger opposition.
While he has yet to capture a major professional championship, Kim remains a legitimate contender in the Korean flyweight scene and a valuable veteran for Black Combat's growing roster.
Sang Kwon Han
Dae Hwan Kim
Yong Soo Jung
