# Ok Rae-yoon

Ok Rae-yoon (Korean: 옥래윤, born March 23, 1991) is a South Korean mixed martial artist currently competing in the Lightweight division of ONE Championship. He is a 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 lost 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

## Mixed martial arts record

Professional record breakdown :
| 22 matches | 17 wins | 5 losses |
| By knockout | 4 | 2 |
| By submission | 1 | 0 |
| By decision | 12 | 3 |
| Res. | Record | Opponent | Method | Event | Date | Round | Time | Location | Notes |
| Loss | 17–5 | Alibeg Rasulov | Decision (unanimous) | ONE Fight Night 23 | July 6, 2024 | 5 | 5:00 | Bangkok, Thailand | For the interim ONE Lightweight Championship (170 lb). Rasulov failed hydration test and was ineligible for the title. |
| Win | 17–4 | Lowen Tynanes | Decision (unanimous) | ONE Fight Night 10 | May 5, 2023 | 3 | 5:00 | Broomfield, Colorado, United States | |
| Loss | 16–4 | Christian Lee | TKO (knees) | ONE 160 | August 26, 2022 | 2 | 1:00 | Kallang, Singapore | Lost the ONE Lightweight Championship (170 lb). |
| Won | 16–3 | Christian Lee | Decision (unanimous) | ONE: Revolution | September 24, 2021 | 5 | 5:00 | Kallang, Singapore | Won the ONE Lightweight Championship (170 lb). |
| Win | 15–3 | Eddie Alvarez | Decision (unanimous) | ONE on TNT 4 | April 28, 2021 | 3 | 5:00 | Kallang, Singapore | |
| Win | 14–3 | Marat Gafurov | Decision (unanimous) | ONE on TNT 3 | April 21, 2021 | 3 | 5:00 | Kallang, Singapore | Return to Welterweight. |
| Win | 13–3 | Ki Won-bin | Decision (unanimous) | Double G FC 5 | November 28, 2020 | 3 | 5:00 | Seoul, South Korea | Won the Double G FC Lightweight Championship. |
| Win | 12–3 | Burenzorig Batmunkh | Submission (rear-naked choke) | Double G FC 4 | July 25, 2020 | 1 | 4:02 | Seoul, South Korea | |
| Loss | 11–3 | Tom Santos | Decision (unanimous) | HEAT 44 | March 2, 2019 | 5 | 5:00 | Nagoya, Japan | Lost the HEAT Lightweight Championship. |
| Win | 11–2 | Norihisa Amimoto | Decision (unanimous) | NeoFight 14 | October 20, 2018 | 2 | 5:00 | Cheongpyeong, South Korea | |
| Win | 10–2 | Jack Becker | Decision (unanimous) | HEAT 42 | March 27, 2018 | 5 | 5:00 | Kariya, Japan | Defended the HEAT Lightweight Championship. |
| Loss | 9–2 | Burenzorig Batmunkh | Decision (unanimous) | Angel's Fighting 5 | November 27, 2017 | 2 | 5:00 | Seoul, South Korea | |
| Win | 9–1 | Yasuaki Kishimoto | Decision (unanimous) | HEAT 40 | July 15, 2017 | 5 | 5:00 | Nagoya, Japan | Won the HEAT Lightweight Tournament and the vacant HEAT Lightweight Championship. |
| Win | 8–1 | Park Eun-seok | TKO (flying knee and punches) | Angel's Fighting 3 | April 29, 2017 | 1 | 0:55 | Seoul, South Korea | Catchweight (159 lb) bout. |
| Win | 7–1 | Eiji Ishikawa | Decision (unanimous) | HEAT 39 | February 19, 2017 | 3 | 5:00 | Nagoya, Japan | HEAT Lightweight Tournament Semifinal. |
| Win | 6–1 | Meng Ding | Decision (unanimous) | WLF E.P.I.C. 6 | July 23, 2016 | 3 | 5:00 | Zhengzhou, China | Catchweight (165 lb) bout. |
| Win | 5–1 | Pu Zhang | TKO (doctor stoppage) | WLF E.P.I.C. 3 | April 23, 2016 | 2 | N/A | Zhengzhou, China | |
| Win | 4–1 | Gele Teri | TKO (punches) | WLF E.P.I.C. 2 | March 13, 2016 | 1 | N/A | Zhengzhou, China | Welterweight bout. |
| Win | 3–1 | Habiti Tuohetasheng | Decision (split) | WBK 5 | July 31, 2015 | 3 | 5:00 | Ningbo, China | Lightweight debut. |
| Loss | 2–1 | Song Yadong | KO (punch) | WBK 3 | April 5, 2015 | 1 | 1:21 | Ningbo, China | Featherweight debut. |
| Win | 2–0 | Lee Youn-hoon | TKO (punches) | Sun FC 2 | July 28, 2014 | 2 | 1:05 | Busan, South Korea | |
| Win | 1–0 | Kim Hyun | Decision | Sun FC 1 | May 18, 2014 | 2 | 5:00 | Busan, South Korea | Welterweight debut. |