

Last fightLoss
Split decisionUFC 331: Van vs. Pantoja 2
UFC round data: 3 bouts · through 2026-09-19

Heuristic scores · 0–100
3 UFC bouts · 92 division peers
Data through 2026-09-19
1 bouts reaching round 3
Data through 2026-09-19
Fight IQ = 40% striking-accuracy percentile + 30% striking-defense percentile + 30% takedown-defense percentile within the division.
Requires 3 UFC bouts, 15 measured minutes, at least 10 division peers, 100 strike attempts, 100 opponent strike attempts and 10 opponent takedown attempts.
Cardio = 100 × the median late/early significant-strike attempt rate ratio, capped at 100. Compare rounds 3+ with rounds 1–2 within each bout. Requires 3 eligible bouts with at least 60 late-round seconds each. 100 means maintained or higher late pace.
Fight IQ summarizes accuracy and defense; cardio summarizes retained pace. Style, opponents and grappling affect both. These scores do not measure intelligence, physical fitness or win probability.
Formula v1
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JooSang Yoo has a professional MMA record of 9-2-0 (wins-losses-draws).
JooSang Yoo's UFC record is 1-2-0 (wins-losses-draws), and 8-0-0 in professional fights outside the UFC.
JooSang Yoo does not have a fight currently scheduled.
JooSang Yoo is 32 years old, born January 21, 1994.
JooSang Yoo stands 170 cm (5'7") tall, with a 180 cm (71") reach.
JooSang Yoo is from South Korea.
JooSang Yoo is known as "Zombie Jr.".
JooSang Yoo last fought on September 19, 2026 at UFC 331: Van vs. Pantoja 2, losing to Michael Aswell Jr. by split decision.
JooSang Yoo lost to Michael Aswell Jr. by split decision at UFC 331: Van vs. Pantoja 2 on September 19, 2026. The official scorecards were Daniel Mobley 29-28, Ron McCarthy 28-29, Derek Cleary 29-28 (winner's score first).
JooSang Yoo (South Korea) is a 32-year-old featherweight who is 9-2 as a pro and 1-2 in the UFC (8-0 outside it). He debuted at UFC 316: Dvalishvili vs. O'Malley 2 on June 7, 2025; his only UFC win came by KO/TKO; he has lost his last two UFC bouts. He scores 0.7 knockdowns per 15 minutes (featherweight average: 0.5; 82nd percentile of 92 active featherweights with at least 3 UFC bouts and 15 minutes of fight time). Last fight: split-decision loss to Michael Aswell Jr., then 1-3 in the UFC, on September 19, 2026 (UFC 331: Van vs. Pantoja 2). No next fight is booked.
Built from AgentMMA's UFC database (as of November 7, 2026); not AI-written.
Computed by AgentMMA from the round-by-round stats of 3 UFC bouts (20:49 of fight time).
| Stat | Yoo | Division average | Percentile |
|---|---|---|---|
| Significant strikes landed per minute | 483 in 20:49 | 4.1 | 52 |
| Significant strike accuracy | 43.2%83 of 192 landed | 47.4% | 28 |
| Significant strikes absorbed per minute | 4.899 in 20:49 | 3.8 | 76 |
| Significant strike defense | 53.1%112 of 211 avoided | 54.3% | 41 |
| Takedowns per 15 minutes | 0.71 in 20:49 | 1.6 | 35 |
| Takedown accuracy | 25%1 of 4 landed | 38.4% | —† |
| Takedown defense | 66.7%2 of 3 stopped | 61% | —† |
| Submission attempts per 15 minutes | 00 in 20:49 | 0.5 | 13 |
| Knockdowns per 15 minutes | 0.71 in 20:49 | 0.5 | 82 |
| Control time | 11.1%2:18 of 20:49 | 18% | 34 |
| Average fight time | 6:563 bouts | 10:43 | 10 |
| Height | 170 cm67″ | 175 cm68.8″ | |
| Reach | 180 cm71″ | 180 cm70.9″ |
UFC record: 1-2
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