Park Hyun-sung

Park Hyun‑sung (; born November 4, 1995), anglicized as Hyun Sung Park or HyunSung Park, is a South Korean mixed martial artist. He currently competes in the flyweight division of the Ultimate Fighting Championship.

Early life Park was born in Gyeonggi Province, South Korea on November 4, 1995. He began training at MMA Story in Seoul and competed as an amateur in multiple Road FC events in 2018. Park earned his nickname "Peace of Mind" due to his calm demeanour both in training and competition.

Mixed martial arts career Early career Park made his professional MMA debut in November 2018 under the banner of Double G Fighting Championship, he exclusively competed for this promotion amassing a 5-0 record including winning their Flyweight title.

Road to UFC In May 2022, it was reported that Park earned a spot on Road to UFC Season 1 competing in the Flyweight tournament.

In the quarterfinal, Park faced Jeremia Siregar on June 10, 2022, at Road to UFC Season 1: Episode 4. He won the fight via technical knockout in round one.

In the Semifinal, Park faced Topnoi Kiwram on October 23, 2022, at Road to UFC Season 1: Episode 6. He won the fight via a rear-naked choke in one.

In the final, Park faced Choi Seung-guk on February 4, 2023, at UFC Fight Night 218. He won the fight via third-round submission.

Ultimate Fighting Championship Park faced Shannon Ross on December 9, 2023, at UFC Fight Night 233. He won the fight by second-round technical knockout. This fight earned him his first Performance of the Night award.

Park was scheduled to face André Lima on June 1, 2024, at UFC 302. However, Park pulled out from the event due to a knee injury and was replaced by promotional newcomer Nyamjargal Tumendemberel.

Park was scheduled to face Nyamjargal Tumendemberel on February 8, 2025, at UFC 312. However, the bout was canceled due to a weight management issue with Nyamjargal.

Park faced Carlos Herandez on May 17, 2025, at UFC Fight Night 256. He would win the fight via first-round submission.

Replacing Alex Perez, who withdrew due to undisclosed reasons, Park was scheduled to face Steve Erceg on August 9, 2025, at UFC on ESPN 72. However, Park was then scheduled to step in to face Tatsuro Taira in the main event of UFC on ESPN 71 a week earlier on August 2, 2025, after Taira's original opponent Amir Albazi had to withdraw due to injury. Park lost via a face crank submission in the second round leading to his first loss in mixed martial arts.

Park faced Bruno Gustavo da Silva on October 18, 2025 at UFC Fight Night 262. He lost the fight via a rear-naked choke submission in the third round.

Championships and accomplishments Ultimate Fighting Championship Performance of the Night (One time) Road to UFC Season 1 Flyweight Tournament Winner

Mixed martial arts record Loss

Bruno Gustavo da Silva Submission (rear-naked choke) UFC Fight Night: de Ridder vs. Allen

Vancouver, British Columbia, Canada Loss

Tatsuro Taira Submission (face crank) UFC on ESPN: Taira vs. Park

Las Vegas, Nevada, United States Win

Carlos Hernandez Submission (rear-naked choke) UFC Fight Night: Burns vs. Morales

Las Vegas, Nevada, United States Win

Shannon Ross TKO (knee and punches) UFC Fight Night: Song vs. Gutiérrez

Las Vegas, Nevada, United States Win

Choi Seung-guk Submission (rear-naked choke) UFC Fight Night: Lewis vs. Spivac

Las Vegas, Nevada, United States Win

Topnoi Kiwram Submission (rear-naked choke) Road to UFC Season 1: Episode 6

Abu Dhabi, United Arab Emirates Win

Jeremia Siregar TKO (punches) Road to UFC Season 1: Episode 4

Kallang, Singapore Win

Kim Joo-hwan KO (knee) Double G FC 11

Seoul, South Korea Win

Kim Se-hyun Submission (rear-naked choke) Double G FC 6

Seoul, South Korea Win

Seo Dong-hyun KO (knee and punches) Double G FC 5

Seoul, South Korea Win

Tsubasa Akiyama Submission (rear-naked choke) Double G FC 2

Seoul, South Korea Win

Kwon Min-soo Decision (unanimous) Double G FC 1

Seoul, South Korea