Ok Rae-yoon

Ok Rae-yoon (, born March 23, 1991) is a South Korean mixed martial artist. He competed in the Lightweight division of ONE Championship, where he was the former ONE Lightweight World Champion.

Mixed martial arts career Early career Ok started his professional MMA career in 2014 and mainly fought in East Asia, particularly Wu Lin Feng. He amassed a record of 13–3 prior to being signed by ONE Championship.

ONE Championship Ok faced Marat Gafurov at ONE on TNT 3 on April 21, 2021. He won the bout by unanimous decision.

Ok faced Eddie Alvarez at ONE on TNT 4 on April 28, 2021. He won a close bout via unanimous decision.

ONE Lightweight Champion Ok faced defending ONE Lightweight World Champion Christian Lee at ONE Championship: Revolution on September 24, 2021. He won the fight by a unanimous decision to win the title. Due to the controversial nature of the decision, it was reviewed by the ONE Competition Committee which ultimately upheld the result.

Ok faced Lee in a rematch on August 26, 2022, at ONE 160. He lost the bout after being dropped by Lee in the second round and being finished on the ground with knees.

Ok faced Lowen Tynanes at ONE Fight Night 10 on May 5, 2023. He won the bout via unanimous decision.

Ok faced Alibeg Rasulov for the interim ONE Lightweight World Championship on July 6, 2024, at ONE Fight Night 23. He lost the bout by unanimous decision.

Championships and accomplishments ONE Championship ONE Lightweight World Championship (One time) 2021 MMA Fighter of the Year Double G Fighting Championship Double G FC Lightweight Championship (One time) HEAT HEAT Lightweight Championship (One time) One successful title defense HEAT Lightweight Tournament winner Fight Matrix 2021 Most Improved Fighter of the Year

Mixed martial arts record Loss

Lucas Gabriel Decision (split) ONE Fight Night 44

Bangkok, Thailand Loss

Alibeg Rasulov Decision (unanimous) ONE Fight Night 23

Bangkok, Thailand Win

Lowen Tynanes Decision (unanimous) ONE Fight Night 10

Broomfield, Colorado, United States Loss

Christian Lee TKO (knees) ONE 160

Kallang, Singapore Won

Christian Lee Decision (unanimous) ONE: Revolution

Kallang, Singapore | Win

Eddie Alvarez Decision (unanimous) ONE on TNT 4

Kallang, Singapore Win

Marat Gafurov Decision (unanimous) ONE on TNT 3

Kallang, Singapore Win

Ki Won-bin Decision (unanimous) Double G FC 5

Seoul, South Korea Win

Burenzorig Batmunkh Submission (rear-naked choke) Double G FC 4 |

Seoul, South Korea Loss

Tom Santos Decision (unanimous) HEAT 44

Nagoya, Japan Win

Norihisa Amimoto Decision (unanimous) NeoFight 14

Cheongpyeong, South Korea Win

Jack Becker Decision (unanimous) HEAT 42

Kariya, Japan Loss

Burenzorig Batmunkh Decision (unanimous) Angel's Fighting 5

Seoul, South Korea Win

Yasuaki Kishimoto Decision (unanimous) HEAT 40

Nagoya, Japan Win

Park Eun-seok TKO (flying knee and punches) Angel's Fighting 3

Seoul, South Korea Win

Eiji Ishikawa Decision (unanimous) HEAT 39

Nagoya, Japan Win

Meng Ding Decision (unanimous) WLF E.P.I.C. 6

Zhengzhou, China Win

Pu Zhang TKO (doctor stoppage) WLF E.P.I.C. 3

Zhengzhou, China Win

Gele Teri TKO (punches) WLF E.P.I.C. 2

Zhengzhou, China Win

Habiti Tuohetasheng Decision (split) WBK 5

Ningbo, China Loss

Song Yadong KO (punch) WBK 3

Ningbo, China Win

Lee Youn-hoon TKO (punches) Sun FC 2

Busan, South Korea Win

Kim Hyun Decision Sun FC 1

Busan, South Korea