Yoo Joo-sang, detto «Zombie Jr.», è un lottatore di MMA della categoria pesi piuma. Il suo record nelle arti marziali miste è 9–2 (vittorie–sconfitte–pareggi). Scheda: 32 anni.
| Esito | Avversario | Metodo | Evento | Data |
|---|---|---|---|---|
| Loss | Michael Aswell | Decision (split) | UFC 331: Van vs. Pantoja 2 | September 19, 2026 |
| Loss | Daniel Santos | TKO | UFC 320: Ankalaev vs. Pereira 2 | October 5, 2025 |
| Win | Jeka Saragih | TKO | UFC 316: Dvalishvili vs. O'Malley 2 | June 7, 2025 |
| Win | Masuto Kawana | TKO (Punches) | Z-Fight Night 2 | December 14, 2024 |
| Win | Reinaldo Ekson | Decision (unanimous) | Z-Fight Night 1 | June 29, 2024 |
| Win | Takuya Kuramoto | TKO (Punches) | HEAT 52 x AFC 27 | August 19, 2023 |
| Win | Shunichi Shimizu | Decision (unanimous) | AFC 22: Angel's Fighting Championship | December 30, 2022 |
| Win | Gustavo Wurlitzer | Decision (unanimous) | AFC 20: Angel's Fighting Championship | September 30, 2022 |
| Win | Doo Seok Oh | Decision (unanimous) | Brave CF 58 | April 30, 2022 |
| Win | Jun Hee Jung | Submission (Rear Naked Choke) | AFC 17: Angel's Fighting Championship | October 15, 2021 |
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