The UFC 324, held on January 24, 2026 at the T-Mobile Arena in Las Vegas, left a night of intense action that included several decisive fights and a change in the lightweight title. In the main event, Justin Gaethje dominated Paddy Pimblett and was proclaimed interim lightweight champion by unanimous decision, thanks to judges' 48-47, 49-46 and 49-46 scorecards, thus halting Pimblett's nine-fight winning streak and paving the way for a potential title duel with Ilia Topuria. In the co-main event, Sean O'Malley returned with a unanimous decision victory over Song Yadong, taking a firm step towards reconquering the bantamweight title. Waldo Cortes-Acosta posted an impressive second-round TKO against Derrick Lewis, cementing his rise in the heavyweight division, while Natalia Silva outlasted Rose Namajunas in the women's flyweight division. In the featherweight division, Jean Silva took a tight unanimous decision over Arnold Allen, adding another key result to the card.