Last fight
4
Wins by Knockout
1
Wins by Submission
4
First Round Finishes
UFC 320 (10/4/25) Yoo was stopped by Daniel Santos via strikes at :21 of the second round
UFC 316 (6/7/25) Yoo knocked out Jeka Saragih at :28 of the first round
When and why did you start training for fighting? I started at the age of 28. It was something that I always wanted to do but never had the opportunity until that point.
What professional titles have you held? AFC and Heat Featherweight champion
Any accomplishments in amateur combat sports? I was undefeated as an amateur,too
Any belts/ ranks in grappling disciplines? Purple belt in BJJ
Who is your favorite fighter and why? Korean Zombie, the greatest Asian fighter. I also respect all the things he has done for Korean MMA after retirement.
What was your job before you started fighting? I did so many different jobs before I became a fighter. Many part-time jobs.
Origin of nickname: Since I respect Korean Zombie a lot, I want to show appreciation. I actually got into UFC because of Zombie. I fought at his promotion and Dana White signed me to UFC from that fight
Personal Life / Background: I have a dad, mom and older brother
What are your hobbies, activities or other interests when not training for a fight? I like playing soccer. I also like to spend time at quiet cafes and read books.
My favorite fighter is Conor McGregor. I even went to his Ireland gym to train. Unfortunately, Conor wasn't there at that time, but coach John Kavanagh took great care of me since I came all the way from Korea.