Renato Moicano Faces a Rising Threat in UFC Vegas 123 Main Event

Halloween at the Meta APEX offers a different kind of fright: an experienced contender determined to stop the next generation from taking his place. Renato Moicano meets Tom Nolan in Saturday’s UFC Vegas 123 headliner, with the Australian riding five consecutive victories into his first UFC main event. Beneath them, Randy Brown tests unbeaten welterweight Jacobe Smith, while an intriguing supporting cast supplies plenty of reasons to tune in before the five-round finale.

Old Tricks Meet New Threats

Moicano’s personality attracts attention, but his ability to turn small openings into decisive grappling advantages makes him dangerous. He enters following a second-round submission of Chris Duncan in April, adding another significant victory to a recent résumé that includes Benoît Saint Denis and Jalin Turner. Nolan, meanwhile, earned his biggest win by outpointing Farès Ziam, demonstrating that his development extends beyond the quick finishes that initially advertised his potential.

The central battle is distance. Nolan should aim to make Moicano cross open space behind his attacks, landing without leaving himself available for easy clinch entries. Moicano’s task is to make the fight feel cramped: interrupt the Australian’s rhythm, force defensive reactions and create opportunities to connect striking exchanges to takedowns.

Watch what happens after Nolan lands. Admiring his work or exiting in straight lines could give Moicano the opportunity he needs to establish contact. Conversely, Moicano cannot approach every exchange as though grappling will automatically rescue him from trouble. He must build his entries rather than absorb punishment while chasing them.

The five-round format adds another challenge for Nolan, who has never previously competed over that distance. His first main-event assignment asks whether he can preserve his decision-making as fatigue accumulates against a seasoned opponent.

Brown versus Smith provides an equally revealing examination in the co-main event. Smith accepted the assignment on less than two weeks’ notice after defeating Bruce Whitehead at UFC 332 earlier this month. The former Oklahoma State wrestler has finished all four of his UFC opponents, including three by knockout, but Brown represents a substantial jump in experience and established ability.

Brown should use his length to make Smith restart his attacks, rather than allowing the younger fighter to build momentum through uninterrupted pressure. For Smith, the important question is whether his wrestling can create the same striking opportunities against an opponent who understands how to manage range. Watch Brown’s position near the fence: if Smith repeatedly traps him there, the veteran’s reach becomes much less useful.

Yana Santos versus Luana Santos brings meaningful stakes to the women’s bantamweight division. Both enter on three-fight winning streaks, with Yana’s run including Miesha Tate and Luana’s featuring Karol Rosa, Melissa Croden and Tainara Lisboa. The clinch should provide an early indication of control. Whoever can dictate those engagements without spending excessive energy may be better positioned to sustain her offense late.

At flyweight, Ode’ Osbourne and Cody Durden compete with considerable urgency. Osbourne has won once in his past three appearances; Durden has one victory in his past six. Osbourne should seek clean, separated exchanges, while Durden can complicate that approach by connecting wrestling attempts and forcing repeated defensive work. The danger for both is allowing the need for a win to produce hurried decisions.

Jean-Paul Lebosnoyani against Farman Hasanov rounds out the latest five-fight main-card listing. Lebosnoyani has opened his UFC career with decision wins over Phil Rowe and SeokHyeon Ko, while Hasanov debuted successfully against Eric Nolan. This is a useful test of progression: can either man move beyond winning competitive minutes and begin imposing a more authoritative style?

The First Scares Come Early

Francis Marshall versus Dakota Hope tops a preliminary card with several potential scene-stealers. Marshall has won twice this year, submitting Erik Silva before defeating Lucas Brennan. Hope lost his debut against Kai Kamaka III but competed through an action-filled 15 minutes. Watch whether Marshall’s pressure forces Hope into defensive exchanges, or whether Hope can establish enough offense to prevent the fight from becoming a prolonged test of survival.

Julian Erosa versus JeongYeong Lee deserves particular attention. Erosa has reached the scorecards only once in his last seven appearances, and even that fight earned a Fight of the Night bonus. Lee, the inaugural Road To UFC featherweight winner, has endured setbacks and cancellations that have interrupted his progress. His challenge is maintaining structure against a veteran who makes fights uncomfortable and unpredictable.

Talita Alencar versus Piera Rodriguez offers a different attraction: two strawweights arriving with three consecutive victories apiece. Alencar brings a serious submission threat, while Rodriguez has built momentum through three decision wins. The key is not simply whether the fight reaches the mat, but who chooses how it gets there. Rodriguez must avoid turning a controlled position into an unnecessary submission scramble.

The opening matchup introduces unbeaten Lucia Szabova, a former two-division Oktagon champion with a 10-0 record and seven finishes, against Tainara Lisboa. It is an immediate chance to assess whether Szabova’s regional success translates against UFC experience.

Also watch Zachary Reese versus Mickey Gall, listed on the latest preliminary lineup, alongside Rodrigo Sezinando versus Theodor Berggren and Nick Klein versus Joseph Kropschot. Gall returns after nearly two years away, while Kropschot makes his UFC debut following a successful Contender Series appearance.

The prelims begin Saturday, October 31, at 5 p.m. ET, with the main card following at 8 p.m. ET on Paramount+.