September 12, 2026 · Desert Diamond Arena, Glendale, Arizona, United States
King
6-0-0
UnrankedNew Orleans, Louisiana | 22 years old
Rosas
8-1-0
UnrankedClovis, New Mexico | 23 years old
Five Minutes Against Fifteen
Rosas ends his fights before the second horn. King builds his until the end of the round. One of them is going to have to fight on the other guy's clock.
Conviction
Conviction 5, no higher, for a reason no amount of prose fixes: there is not a single UFC number in this fight. Everything I have on either man was produced against regional-circuit opposition, and the best record King has beaten belongs to a 13-10 veteran who is 36 years old. On top of that, the easiest argument in the fight does not hold up: Rosas' height moves from source to source, 5'9" on Sherdog and ESPN, 5'7.5" on UFC.com, 5'7" on UFCStats, so all I can say is that King is the taller man. What holds the pick up is something else, and it is specific: King was built at featherweight, has never competed in another division, and both of his 2026 stoppages arrived at the end of a round off accumulation, at 4:54 and 4:09, not off a lucky shot. On the other side, the version of Rosas who settles everything in five minutes is the 2023 one, with all three first-round submissions stacked inside 10 weeks of that year. What keeps this from climbing past 5 is the rest of the picture: Rosas just submitted a man at 3:50 of round 5 in a title fight, so the back end of a fight is his territory too, and his four submissions do not ask for a dominant position, they grow out of entanglements and they show up off his back. I am betting on missing data on King's side, a man who has never lost and has never been publicly hurt, and missing data is not a wall.
Conviction 5, no higher, for a reason no amount of prose fixes: there is not a single UFC number in this fight. Everything I have on either man was produced against regional-circuit opposition, and the best record King has beaten belongs to a 13-10 veteran who is 36 years old. On top of that, the easiest argument in the fight does not hold up: Rosas' height moves from source to source, 5'9" on Sherdog and ESPN, 5'7.5" on UFC.com, 5'7" on UFCStats, so all I can say is that King is the taller man. What holds the pick up is something else, and it is specific: King was built at featherweight, has never competed in another division, and both of his 2026 stoppages arrived at the end of a round off accumulation, at 4:54 and 4:09, not off a lucky shot. On the other side, the version of Rosas who settles everything in five minutes is the 2023 one, with all three first-round submissions stacked inside 10 weeks of that year. What keeps this from climbing past 5 is the rest of the picture: Rosas just submitted a man at 3:50 of round 5 in a title fight, so the back end of a fight is his territory too, and his four submissions do not ask for a dominant position, they grow out of entanglements and they show up off his back. I am betting on missing data on King's side, a man who has never lost and has never been publicly hurt, and missing data is not a wall.
THE DECIDING POINT
The First Five Minutes Decide It
Jessie Rosas has nine pro fights and exactly one of them reached the judges. Five of his eight wins ended in round 1, three by submission and two by TKO, and the quickest lasted 12 seconds. Add it up: 56 minutes of cage time across nine fights, and almost 24 of those minutes came in a single bout, the UWC title fight in June. Strip that one out and the rest of his career fits inside a little over half an hour. Rosas does not manage fights. He ends them. Sean King does the opposite, and he does it on purpose. He laid out the plan himself back in February: work from the outside, set the pace, make it add up. The numbers back the talk. Both of his 2026 stoppages arrived at the tail end of a round, at 4:54 of round 1 against Dumar Roa and 4:09 of round 2 against Dimitre Ivy, and his two decisions are clean 15-minute performances, one of them against Anthony Toro, who walked in with seven pro fights to King's two. King needs time. Rosas needs there to be none. That is the whole fight. If the opening five minutes turn into grappling, Rosas is standing in the exact place where he has settled five bouts. If they play out at range, King starts stacking, and that is where the date nobody checks starts to matter: all three of Rosas' first-round submissions sit inside a 10-week stretch in 2023, and since April of that year he has submitted exactly one man, at 3:50 of round 5.
Jessie Rosas has nine pro fights and exactly one of them reached the judges. Five of his eight wins ended in round 1, three by submission and two by TKO, and the quickest lasted 12 seconds. Add it up: 56 minutes of cage time across nine fights, and almost 24 of those minutes came in a single bout, the UWC title fight in June. Strip that one out and the rest of his career fits inside a little over half an hour. Rosas does not manage fights. He ends them. Sean King does the opposite, and he does it on purpose. He laid out the plan himself back in February: work from the outside, set the pace, make it add up. The numbers back the talk. Both of his 2026 stoppages arrived at the tail end of a round, at 4:54 of round 1 against Dumar Roa and 4:09 of round 2 against Dimitre Ivy, and his two decisions are clean 15-minute performances, one of them against Anthony Toro, who walked in with seven pro fights to King's two. King needs time. Rosas needs there to be none. That is the whole fight. If the opening five minutes turn into grappling, Rosas is standing in the exact place where he has settled five bouts. If they play out at range, King starts stacking, and that is where the date nobody checks starts to matter: all three of Rosas' first-round submissions sit inside a 10-week stretch in 2023, and since April of that year he has submitted exactly one man, at 3:50 of round 5.
Truth A
Rosas is the most dangerous man in round 1 of this fight. Purple belt, 2019 IMMAF Youth Worlds silver medalist at 16, four submission wins, five first-round finishes, none of them lasting past 3:16. Inside that window he is clearly the more complete fighter.
Truth B
Once those five minutes pass, everything the fight rewards belongs to King. He is the taller man, a natural featherweight against a bantamweight moving up, with two 15-minute decisions on the record and two 2026 stoppages that only arrived because he stacked damage until the round was almost over.
Tale of the Tape
The sources do not agree. Sherdog and ESPN list Rosas at 5'9", UFC.com at 5'7.5" and UFCStats at 5'7". King is the taller man under every listing, but the size of the gap cannot be pinned down.
The UFC has not published King's reach. At 6'0" the length edge is close to certain, but there is no official number to cite.
Open stance, which opens up Rosas' left hand and King's outside low kick.
Sherdog and ESPN both list Rosas out of MMA Lab, which sits in Arizona, the same state hosting this card.
Rosas won the UWC bantamweight belt three months ago. King has never competed in another division.
Current Form
Sean King
Headlined Fury FC 122 in his home state. Stopped a 23-fight veteran with seven career submissions, elbows and punches at 4:09 of round 2.
TKO R2His only pro submission. Arm-triangle locked at 1:40 of round 2, patient and clean on the mat.
Sub R2Broke down a Colombian journeyman with 50 pro fights and finished with punches at 4:54 of round 1, six seconds from the horn.
TKO R1Faced Anthony Toro, who showed up with seven pro fights to his two, and swept all three rounds. Best proof he holds up over 15 minutes.
Unanimous DecisionFury FC 106 at home. Second straight decision, against a green opponent. Weakest line on the resume.
Unanimous DecisionFour fights in 11 months, four wins, three stoppages. Back in February he said the plan for the year was three wins and a Contender Series slot. He got the three wins, he got the Contender Series slot, and then the UFC decided it had seen enough and put him straight into the Octagon instead. His last outing was July in Westwego, Louisiana, with his own name in the event billing. He is sharp and busy. The one honest caveat is calibre: the best record he has beaten is 13-10.
Jessie Rosas
Won the UWC bantamweight title in Tijuana. Arm-triangle at 3:50 of round 5 over a 39-fight veteran. First time in his career he had ever been past the third round.
Sub R5Returned from 14 months out and stopped the Argentine in 2:38 of the opening round.
TKO R1Fury FC 95. The only decision in nine pro fights. Controlled 15 minutes without finding the finish.
Unanimous DecisionOnly pro loss. Lewis took his back and buried the rear-naked choke at 1:55 of round 1. As an amateur he had already dropped the 2019 IMMAF Youth Worlds final to Leandro Gomes by unanimous decision.
Sub R1Anaconda choke at 1:25. Third straight first-round submission, all three inside a 10-week stretch in 2023.
Sub R1Three straight wins and a UWC title he took in June, in the fifth round, off a 39-fight veteran. Inside the cage he is in good shape. Outside it, the last few weeks have been chaos: he signed on short notice to face Miles Johns at UFC Vegas 120 in August, then got pulled by the doctors over a skin condition the promotion feared was herpes and his family insists was nothing more than mat burn. Rather than rebook him, the UFC cut him from the roster, then reversed course in early September to slot him in here. He has never had a full camp for the promotion. Before all of that, he also sat out 14 months between August 2024 and October 2025.
Level of Competition
Neither man has faced anyone who has ever fought in the UFC, and that is the single most important line in this section. The best name on King's ledger is Dimitre Ivy, 13-10 at age 36, and the most experienced is Dumar Roa, a Colombian at 22-28 across 50 fights. On the Rosas side, the best name is Erick Ruano, 28-11 at 38, the veteran he submitted in round 5 in Tijuana for the vacant UWC bantamweight belt. The other eight opponents across both records either carry losing marks or have fewer than 10 fights. There is no calibre gap in either direction here: it is regional-circuit opposition on both sides, and that is exactly why this booking works as a measuring stick. What it measures is which of these two styles survives first contact with the UFC standard.
Statistical Comparison
Pro Fights
Neither man has a single official UFC statistic. Everything in this section was counted fight by fight off both pro records.
Rounds Profissionais Disputados
Rosas has four more rounds of road behind him, and five of them came from one bout, June's title fight.
Minutos Totais de Carreira
Basically level, by opposite routes: 30 of King's 51 minutes came from two decisions, and 24 of Rosas' 56 came from a single fight.
Average Fight Time (min)
Two minutes of difference per fight. Translated: King waits for the round to pay off, Rosas ends it first.
Vitórias Antes dos Cartões (%)
Counts TKOs and submissions together. Four of Rosas' six stoppages are submissions; three of King's four are TKOs.
First-Round Wins
The most dangerous number in the fight for King. Five of Rosas' eight wins ended in round 1, three by submission and two by TKO, and none of them lasted past 3:16.
Wins by Decision (%)
Rosas has been to the cards once in nine pro fights, and that is what this row measures: one of eight wins, 13%. The only other win that is neither a knockout nor a submission is his 2022 debut, taken by disqualification, and Sherdog files that one in a fourth column labeled others. In the method split, which only has three columns, it sits under decisions so the eight wins add up.
Nocautes Técnicos na Carreira
Rosas' two stoppages came early, one in 12 seconds. Two of King's three came off accumulation at the end of a round, at 4:54 and 4:09, and the third is his pro debut, punches at 32 seconds of round 1 against Angel Martinez.
King leads in 3 categories · Rosas leads in 5
Win & Loss Distribution
Wins
KO/TKO
Submission
Decision
King settles four of his six wins before the cards, and he settled all three 2026 outings, but the how splits by era. Both 2026 striking stoppages arrived at the end of a round, off accumulation, at 4:54 of round 1 against Dumar Roa and 4:09 of round 2 against Dimitre Ivy. The third striking stoppage on his record is his pro debut, April 2025, punches at 32 seconds of round 1 against Angel Martinez. So both versions live on the ledger, and the recent one is the one that collects late. Both decisions are from 2025, against the two weakest names he has faced. Rosas is the more concentrated finisher of the pair: six of eight wins by stoppage, four of them submissions, five of them settled inside round 1. Where those submissions come from is worth a look, because it changes the read: armbar, triangle-armbar, anaconda and arm-triangle. Not one of them grew out of back control, which means he does not need a dominant position to end the night. One counting note, because the sources do not fit into three columns: Sherdog breaks Rosas' eight wins into two TKOs (25%), four submissions (50%), one decision (13%) and a fourth column labeled others (13%), holding the 2022 debut, won by disqualification after an illegal knee from Eliu Trujillo. There are only three columns here, so that win sits under decisions, the bucket for wins in which he did not stop the man himself, and the split adds up to eight. In practice, Rosas has visited the scorecards once in nine fights.
Losses
KO/TKO
Submission
Decision
There is no pattern to read here, and saying that out loud beats inventing one. King has never lost, not as a pro and not across seven amateur bouts, so his column is literally empty. That is not the same thing as being unbreakable: it is missing data, and nobody knows what happens the first time he genuinely gets hurt. Rosas has exactly one pro defeat, the Keenan Lewis rear-naked choke at 1:55 of round 1 in March 2024, and a single loss builds no pattern at all. There is one more outside the pro record: the 2019 IMMAF Youth Worlds final, dropped to Leandro Gomes by unanimous decision. The only thing it shows is what happened that night: when somebody got to his back, the fight lasted under two minutes. Neither man has the sample size for a conversation about chins, and betting as though they do is betting on nothing.
Skills Profile
King
vs
Rosas
Striking at Range
+3 King
He is the taller man and he shows up with a stated plan to work from the outside. That is how he broke down Roa and Ivy, taxing them from long range until the round ran out.
Close-Range Striking
+1 Rosas
Up close, whoever wants to be there wins. Rosas needs that space for the clinch and the takedown; King needs to stay out of it.
Knockout Power
+1 King
Three TKOs in six wins against two in eight, though Rosas owns the fastest stoppage between the two careers at 12 seconds.
Striking Defense
Even
Neither has an official statistic and neither has been knocked out. On both sides that is missing data, not a wall.
Grappling & Clinch
+2 Rosas
Purple belt, 2019 IMMAF Youth Worlds silver, four pro submissions, every one of them an entanglement: armbar, triangle-armbar, anaconda and arm-triangle. King finishes too, with a pro arm-triangle and two rear-naked chokes among his seven amateur wins, but Rosas is the specialist.
Cardio (3 Rounds)
Even
King owns two clean 15-minute decisions. Rosas just choked a man out in round 5 of a title fight. Both proved the tank, by different routes.
King wins the fight that happens at arm's length and a half. Rosas wins the fight that happens pressed against the fence. There is no third version of this bout, and the tiebreaker is who imposes the range in the opening five minutes.
Final Prediction
The Thesis
Conviction5/10The thesis is: Sean King wins because he is the natural featherweight in this fight and has never competed in another division, while Rosas is moving up from bantamweight three months after winning a 135-pound title and is still listed at 135 by both Sherdog and UFC.com; because both of his 2026 stoppages came off accumulation late in the round, at 4:54 of round 1 against Dumar Roa and 4:09 of round 2 against Dimitre Ivy, which is the kind of win you build rather than the kind you draw, with two clean 15-minute decisions underneath it; and because the version of Rosas who settles everything in the first round is three years old, since all three of his first-round submissions sit inside a 10-week stretch in 2023 and his only submission since then came at 3:50 of round 5.
The thesis is: Sean King wins because he is the natural featherweight in this fight and has never competed in another division, while Rosas is moving up from bantamweight three months after winning a 135-pound title and is still listed at 135 by both Sherdog and UFC.com; because both of his 2026 stoppages came off accumulation late in the round, at 4:54 of round 1 against Dumar Roa and 4:09 of round 2 against Dimitre Ivy, which is the kind of win you build rather than the kind you draw, with two clean 15-minute decisions underneath it; and because the version of Rosas who settles everything in the first round is three years old, since all three of his first-round submissions sit inside a 10-week stretch in 2023 and his only submission since then came at 3:50 of round 5.
The path is King getting through the opening five minutes without handing over an entanglement, keeping Rosas at the end of his range with the jab and the outside low kick, and from the middle of round 2 letting the accumulation collect the way it collected on Roa and Ivy. It breaks down if Rosas closes the distance early and finds the entanglement, because his four submissions are an armbar, a triangle-armbar, an anaconda and an arm-triangle, and not one of them required a dominant position.
What Breaks This Pick
- 01
If Rosas lands a clinch or a takedown in the first two minutes and King does not get back up quickly, the fight becomes the shape Rosas has already settled five times.
- 02
If King gets through round 1 without producing volume, the read that size solves this on its own is already dead. Size without output does not score and does not hurt.
- 03
If fight week collects the debut tax. King has never been through a fight week on the UFC calendar, and there is no public record of how he makes 145 under the promotion's protocol. The only thing he has said on the subject, back in February, is that he is big for the weight class. A debutant who shows up flat on the scale gives away the exact physical edge this pick leans on.
- 04
If Rosas shows something standing that his record does not show, like managing range instead of charging in, King loses the one advantage he gets for free.
Underdog Path
Rosas comes forward closing the distance off the first horn and accepts eating a shot or two to reach the clinch. He walks King to the fence and works the takedown from there, and he does not even need to finish on top: his four pro submissions are an armbar, a triangle-armbar, an anaconda and an arm-triangle, arm and neck entanglements that show up off his back and out of scrambles alike. If King dives on a badly timed takedown, the anaconda is right there. He closes it before the end of round 2. This is the fight he has already settled five times inside round 1, three of those by submission.
Required Conditions
- Close the distance inside the first two minutes, before King calibrates his range and starts stacking
- Complete a fence clinch or a takedown against the taller and naturally bigger man in the fight
- Find the entanglement early, armbar, triangle or anaconda, instead of settling for a stalled top position where the bigger man resets
- Close the fight before the end of round 2, because past that the size and the wear start pointing the other way
— Precedent: There is no clean precedent, and it is worth saying so. What exists is his own pattern: five first-round wins, three of them submissions, plus the arm-triangle at 3:50 of round 5 over 39-fight veteran Erick Ruano in June 2026, which shows he finishes late too. And there is the warning that runs the other way, from March 2024: his only pro defeat came when Keenan Lewis took his back and closed the rear-naked choke in 1:55. Back control is the one documented way to finish Rosas. It is not his weapon.
Verdict
Winner
Sean King
Method
TKO
Most Likely
- 01
Winner
Sean King
King is the pick of the breakdown, but the price does not pay: charges 60% and my read lands at 52%. So this is a pass or a minimum stake, with the real exposure going to the duration market. Breaks if Rosas lands the clinch in the first two minutes.
- 02
How It Ends (Either Fighter)
Fight does not reach the scorecards
Twelve of the 15 combined pro fights between these two ended before the cards, and Rosas has been to a decision once in nine. It does not require picking the winner, only that both men fight the way they always have. Breaks if King repeats his cautious 2025 decisions and Rosas accepts the full 15 minutes.
- 03
Method
Sean King by TKO
King by stoppage because both of his 2026 stoppages came off accumulation, at 4:54 and 4:09, and it is the single most likely outcome on the board. He is not stuck with that one route either: his pro debut ended in punches at 32 seconds, so there are two TKO paths on the ledger, not one. The market underrates it because it sees a debutant's zero and a six-fight record. Breaks if Rosas gets this to the mat at any point in the first two rounds.
- 04
Underdog Winner
Jessie Rosas by submission
Rosas by submission because it is by far the cleanest way the underdog wins: four of his eight victories came that way and none of them required a dominant position, so the threat is live even off his back. Worth the hedge, not worth pricing the round on top, because his most recent submission came at 3:50 of round 5. Breaks if King keeps this standing and at the end of his range.
Most Likely Outcome
Fight does not reach the scorecards
It is the soundest read in the breakdown precisely because it does not depend on me getting the winner right. Both men share the same habit for opposite reasons: Rosas ends it early, King collects at the end of the round. Conviction 5 on the winner means not sizing up on either side.
Stats That Matter
5
of Rosas' eight wins ended in round 1, none of them past 3:16
King's entire danger window fits inside the opening five minutes
10 weeks
hold all three of Rosas' first-round submissions, every one of them in 2023
Since April 2023 he has submitted exactly one man, at 3:50 of round 5 against Erick Ruano
ZERO
official UFC statistics between the two fighters
Every number in this breakdown was counted on the regional circuit, and that is a real limit on the read
The Trap
Rosas by first-round submission
The market is going to see five first-round wins, a purple belt, the Rosas surname, and hammer this one. The problem is not Rosas finishing, it is the round. All three of his first-round submissions land inside a 10-week window in 2023, against regional opposition, and since April of that year he has submitted exactly one man: Erick Ruano, at 3:50 of round 5. The current version of Rosas finishes late, not early. And across from him is a fighter with a pro arm-triangle on his record and seven amateur wins built largely on chokes, two rear-naked chokes and two triangles among them. Rosas' path is real. Pricing the round on top of it is paying up for a version of him that is three years old.
The market is going to see five first-round wins, a purple belt, the Rosas surname, and hammer this one. The problem is not Rosas finishing, it is the round. All three of his first-round submissions land inside a 10-week window in 2023, against regional opposition, and since April of that year he has submitted exactly one man: Erick Ruano, at 3:50 of round 5. The current version of Rosas finishes late, not early. And across from him is a fighter with a pro arm-triangle on his record and seven amateur wins built largely on chokes, two rear-naked chokes and two triangles among them. Rosas' path is real. Pricing the round on top of it is paying up for a version of him that is three years old.
COLISEUM - Statistical and tactical analysis. Data sourced from ufcstats.com and public sources.
Sean "The King of New Orleans" King vs Jessie "Tachidito" Rosas | Noche UFC: Silva vs Delgado | September 12, 2026 | Desert Diamond Arena, Glendale, Arizona, United States
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