when does ufc 319 start

UFC 319 starts on Saturday, August 16, 2025. The event will take place at the United Center in Chicago. The main card is scheduled to begin at 10 p.m. Eastern Time (ET). The preliminary card starts earlier at 6 p.m. ET, followed by additional prelims at 8 p.m. ET. The main event features Dricus du Plessis defending his middleweight title against Khamzat Chimaev.