
Result · UFC
Erosa retires on a first-round knockout
Lee dropped Erosa with a left hook in the first 15 seconds and hunted a guillotine. Erosa finished with punches, and the bout sends his family back to the farm in Washington.
UFC · Featherweight

11–4–0
4 KO · 3 SUB · 4 DEC
JeongYeong Lee fights at featherweight in the UFC.
He lost to Julian Erosa by punches at 1:31 of the first round on October 31, 2026. The only win on the UFC roster is a decision over Blake Bilder on February 3, 2024. Before that, he won the Road to UFC featherweight final over Yi Zha.
The only loss before the UFC is a decision to Se Yeong Kim on June 10, 2017. He stopped Kim in the rematch. All three submission wins are armbars.
He started Brazilian jiu-jitsu at 15, holds a fourth-degree black belt in taekwondo and a black belt in Brazilian jiu-jitsu, and won a Road FC featherweight title. He turned pro in 2014.

Result · UFC
Lee dropped Erosa with a left hook in the first 15 seconds and hunted a guillotine. Erosa finished with punches, and the bout sends his family back to the farm in Washington.
| Date | Opponent | Result | Method | Round | Time | Event |
|---|---|---|---|---|---|---|
| Julian Erosa | Loss | KO (punches) | 1 | 1:31 | UFC Fight Night: Moicano vs. Nolan | |
| Daniel Santos | Loss | Decision (unanimous) | 3 | 5:00 | UFC 315 | |
| Hyder Amil | Loss | TKO (punches) | 1 | 1:05 | UFC on ESPN: Lemos vs. Jandiroba | |
| Blake Bilder | Win | Decision (unanimous) | 3 | 5:00 | UFC Fight Night: Dolidze vs. Imavov | |
| Yi Zha | Win | Decision (split)Won the Road to UFC featherweight title. The bout was on UFC Fight Night: Lewis vs. Spivac. | 3 | 5:00 | Road to UFC Season 1 Final | |
| Lu Kai | Win | KO (punches) | 1 | 0:42 | Road to UFC: Abu Dhabi Semifinals | |
| Xie Bin | Win | Submission (armbar) | 1 | 0:36 | Road to UFC: Singapore Quarterfinals | |
| Hae Jin Park | Win | KO (punches) | 1 | 0:10 | Road FC 55 | |
| Mu Gyeom Choi | Win | Decision (unanimous) | 3 | 5:00 | Road FC 50 | |
| Se Yeong Kim | Win | TKO (punches)Rematch. | 1 | 3:30 | Road FC 46 | |
| Marcio Cesar | Win | TKO (doctor stoppage) | 2 | 1:44 | Road FC 43 | |
| Se Yeong Kim | Loss | Decision (unanimous) | 3 | 5:00 | Road FC 39 | |
| Ho Joon Kim | Win | Decision (split) | 3 | 5:00 | Road FC 35 | |
| Kyung Yui Cho | Win | Submission (armbar) | 1 | 0:18 | Road FC 33 | |
| Se Yoon Kwon | Win | Submission (armbar) | 2 | 3:21 | Road FC 14 |