‘Yacha’ Choi Jun-seo beats both major leaguers\nUFC welterweight low-level Choi Seong-gi\n Korean zombie MMA gym membership\nWhen is the first defense match for the title of Black Kombat?\n”Champion will miss 6 months → deprive him of the title”\n Regulations announced by Park Pyeong-hwa, CEO of Black Kombat
The active champion of Asia’s top 10 MMA (MMA) organizations will learn from the best player of all time in Korea.
Choi Joon-seo (24), the first Black Kombat welterweight (77kg), announced his membership in “Korean Zombie MMA,” saying, “I sincerely thank Director Jung Chan-sung (38) for giving me a chance to be together.”
사진 확대 Choi Jun-seo, the first Black Kombat welterweight champion, is taking a photo with director Jung Chan-sung at the “Korean Zombie MMA” in Yeoksam-dong, Seoul, in October 2025. Director Chung Chan-sung is the best mixed martial arts fighter in Korea who has participated in two UFC featherweight title matches. Photo @YAKSHA_cjs1
Jung Chan-sung retired from active duty in August 2023 after playing as a Korean all-time No. 1 fighter in two UFC featherweight (66kg) title matches. He has been the leader of the Korean Zombie MMA Gymnasium since April 2013 and the representative of the mixed martial arts competition Z-Fight Night since June 2024.
Black Kombat held 51 competitions every 25.7 days, including 15 â–² Numbering Series, 7 â–² Champions League Series, and 29 â–² Champions League Series, in 1312 days (3 years, 7 months, 4 days) since its establishment. It has established itself as the 10th largest Asian and 24th largest global organization with 65 people in the “Fight Matrix” world rankings.
사진 확대 Global ranking of mixed martial arts competition players 
사진 확대 “Yacha” Choi Jun-seo is delighted after beating “Korean gangster” Park Won-sik in the first Black Combat welterweight championship match at Inspire Arena in Yeongjong International City, Incheon, in May 2025. Photo = Idea Paragon
Choi Joon-seo won 4-2 in Black Kombat from January 2023. He won the welterweight division in May 2025. â–² ‘Camellia’ Jin Tae-ho â–² ‘Korean Gangster’ Park Won-sik and Major Leagu were defeated to raise their international status.
â–³UFC â–³ Professional Fighters League (USA) â–³ One Championship (Singapore) â–³ Rizin (Japan) will be grouped into mixed martial arts big leagues. Dream and Sengoku split the world’s second-largest Japanese market until the early 2010s after Pride was absorbed by the UFC.
Choi Jun-seo was evaluated as a “Fight Matrix” welterweight of 50 points in the fourth quarter of 2023 and the first quarter of 2024. The 50 points currently correspond to the 77th and top 98.7% UFC welterweight level.
Korean Zombie MMA has become a gym where three ‘Fight Matrix’ welterweight career high 45 or more points are active, following â–² Road to UFC Season 1 to 3 Kim Han-seul (69 points) â–² Road to UFC Season 4 Jang Yoon-sung (48 points).
Choi Jun-seo vowed, “I will do my best to build a wider perspective and skills as a player with Director Jung Chan-sung so that I can show better performances in the future.”
사진 확대 “Yacha” Choi Joon-seo is speaking about his feelings as the first Black Combat welterweight champion at Inspire Arena in Yeongjong International City, Incheon, in May 2025. On the left is Kim Kyung-won, ring announcer and marketing director. Photo = Idea Paragon
Attention is focusing on whether Choi Joon-seo, who joined Korean Zombie MMA, will play the first defense game of the welterweight title at Black Kombat 16 in January 2026. The player explained, “The contract with Black Kombat is still valid and discussions are underway for the next game.”
Three days before Black Kombat 15 in August 2025, Choi Jun-seo said, “We are currently considering a knee treatment plan. I’m going to think deeply about the future direction while I’m having a recovery time,” he said, explaining the reason for his absence from the tournament.
At a press conference for the settlement of Black Kombat 15, attended by MK Sports, YouTube channel “Lee Kyo-duk GOAT,” and martial arts reporter Jung Sung-wook, Park Pyeong-hwa admitted that he would grant title match qualifications to No. 1 welterweight “Nobles” Miusong Castru (32, Brazil).
사진 확대 “Yacha” Choi Jun-seo is feeling emotional after being crowned the first Black Combat welterweight champion at Inspire Arena in Yeongjong International City, Incheon, in May 2025. On the right is Park Pyeong-hwa, CEO of Black Kombat. Photo = Idea Paragon
However, CEO Park Pyeong-hwa did not confirm Choi Jun-seo as the next opponent for Miwusong Castrew as he is injured. He added that there is a stipulated clause in the Black Kombat contract that says, “The champion has been offered a defensive battle by the conglomerate, but if he is unable to play for more than six months, he will be deprived of the title.”
Choi Jun-seo Major MMA Career
2017~ 9 wins and 3 losses
KO/TKO 6 wins and 1 loss
1 win and 0 loss for submission
2023~ Black Kombat (Korea) 4 wins and 2 losses
1 win for DEEP (Japan) in 2023
2025 Black Kombat Welterweight Champion
사진 확대 “Yacha” Choi Jun-seo’s profile as the first Black Kombat welterweight champion. Photo = Idea Paragon
South Korea’s mixed martial arts welterweight ranking
* Korean zombie MMA
First place, Go Seokhyun (UFC) 157 points
2nd place is Yoon Taeyoung (Road FC) with 76 points
3rd place, JANG YUN SUNG*(RTU) 45 points
4th place, Choi Junseo* (Black Combat) 44 points
5th place is Park Siwon (Road FC) with 33 points
6th place Jin Tae-ho (Black Kombat) 26 points
7th place Kim Yul (Black Kombat) 23 points
[Kang Daeho, MK Sports Reporter]