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UFC Fight Night: Rosas Jr. vs. Barcelos

Sep 26, 2026Las Vegas, Nevada, USA11 of 11 calibrated matchup cards liveFull slate live

This surface shows the governed calibrated stack honestly: probability splits, model reasons, and the caveats that matter when volatility or weak regimes are present.

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What this page is actually doing
  • Shows calibrated probabilities from the governed production alias rather than raw heuristic certainty.
  • Carries volatility and regime caveats forward instead of hiding them behind premium copy.
  • Keeps event rendering tied to real API outputs and real fighter identity data.
Bantamweight
guarded
Raoni Barcelos
lean
vs
Raul Rosas Jr.
calibrated lean
Raoni Barcelos
66% calibrated win probability for the current lean, but guarded by volatility or weak-regime caveats
Raoni Barcelos
66%
Raul Rosas Jr.
34%
why the model leans this way

Raoni Barcelos projects ahead on current measurable form and matchup profile. Raul Rosas Jr. holds the clearer grappling edge Raoni Barcelos has the stronger proven sample in this division Empirical calibration applied from historical outcome bins.

  • Raul Rosas Jr. shows the clearer grappling edge
Risk flags
  • Both fighters carry high finish volatility
Uncertainty / caveats
  • High-volatility matchup: finish variance is elevated and certainty should be discounted.
  • Probability is shown through the calibrated presentation layer built from baseline-v4-clean.
Light Heavyweight
guarded
Rodolfo Bellato
lean
vs
Christian Edwards
calibrated lean
Rodolfo Bellato
66% calibrated win probability for the current lean, but guarded by volatility or weak-regime caveats
Rodolfo Bellato
66%
Christian Edwards
34%
why the model leans this way

Rodolfo Bellato projects ahead on current measurable form and matchup profile. Rodolfo Bellato holds the clearer form edge Rodolfo Bellato holds the clearer grappling edge Rodolfo Bellato has the stronger proven sample in this division Rodolfo Bellato has the clearer incumbency edge in this division Rodolfo Bellato has shown more recent division stability Division-transition caution: Christian Edwards is making a division debut; At least one fighter has thin recent sample coverage behind the proxy stats. Empirical calibration applied from historical outcome bins.

  • Rodolfo Bellato shows the clearer form edge
  • Rodolfo Bellato shows the clearer grappling edge
Risk flags
  • Christian Edwards low recent sample
  • Christian Edwards division debut
Uncertainty / caveats
  • Christian Edwards is making a division debut
  • At least one fighter has thin recent sample coverage behind the proxy stats
  • The matchup has uneven recent sample coverage between the fighters
  • Probability is shown through the calibrated presentation layer built from baseline-v4-clean.
Middleweight
locked
Rodolfo Vieira
vs
Robert Bryczek
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Lightweight
locked
Elves Brener
vs
Josiah Harrell
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Bantamweight
locked
Ilimbek Akylbek Uulu
vs
Mehemmedeli Osmanli
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Bantamweight
locked
Ricky Simon
vs
Montel Jackson
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Bantamweight
locked
Brady Hiestand
vs
Rinya Nakamura
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Bantamweight
locked
Alatengheili
vs
John Castaneda
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Women's Bantamweight
locked
Ailin Perez
vs
Norma Dumont
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Women's Strawweight
locked
Melissa Amaya
vs
Valesca Machado
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Women's Strawweight
locked
Vanessa Demopoulos
vs
Yazmin Jauregui
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9 more bouts on this card

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