METRICS GUIDE
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All stats are calculated from official fight data. Style scores are Combatrics proprietary ratings updated after every event.
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A 21-year-old with five straight wins headlines against a 39-year-old on a five-fight run of his own, and only one of them has time on his side.
Both men walk into this on five straight wins, which is rare enough for a main event and rarer still when one of them is 21 and the other is 39. That is the fight: two unbeaten runs, one of which was built while the fighter was still growing into his body and one of which was built by a man who has been doing this professionally for longer than his opponent has been able to drive. The model prefe…
Rosas (12-1) has won five in a row, three of them by decision and the two before that inside the distance — a second-round submission of Ricky Turcios in June 2024 and a 54-second knockout of Terrence Mitchell in September 2023. His most recent was a decision over Rob Font at UFC 326 in March, comfortably the best name on his sheet. At 21 he already has seven recorded UFC fights, and a 98.0 chin rating with a perfect 100.0 momentum score.
Barcelos (22-5) has also won five straight, over Montel Jackson, Ricky Simon, Cody Garbrandt, Payton Talbott and Cristian Quinonez, but four of those went to the cards. He is 39 with 15 recorded UFC fights, and the metrics flag his 72.0 chin rating and a momentum score of 62.5 that sits well below what an unbeaten run would normally produce.
A seventeen-year age gap — 21 against 39 — over a scheduled main-event distance
Identical 170.2cm reach removes the usual range advantage for either man
Barcelos' 62.5 momentum score despite five straight wins, four of them decisions
Rosas' 3.87 grappling and 3.33 submission against Barcelos' 1.82 submission rating
Barcelos' 72.0 chin against a fighter with a 54-second knockout in his last five
Barcelos has 15 recorded UFC fights to Rosas' 7, and beat Payton Talbott, Ricky Simon and Cody Garbrandt on the cards — he knows how to win rounds without finishing them
Rosas' 39.8 quality-of-victory is modest; outside the Font decision he has not beaten anyone of Barcelos' standard
Rosas' 2.71 wrestling is not dominant, and if the takedowns do not land the striking scores are effectively level
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Combatrics radar — 6 fighting dimensions scored 0–10