This event marked the promotion's fourth visit to Perth and its first-ever Fight Night, following
UFC 305 in August 2024. The pairing was initially scheduled for
UFC 297 in January 2024, but was cancelled due to an injury sustained by Ulberg. It was later rebooked for
UFC on ESPN: Blanchfield vs. Fiorot in March 2024; however, Reyes withdrew from the bout due to
deep vein thrombosis. A featherweight bout between
Choi Doo-ho and
Daniel Santos was scheduled for this event. However, Choi withdrew from the fight for unknown reasons and was replaced by Yoo Joo-sang. In turn, the pairing was moved to
UFC 320 due to undisclosed reasons. Tom Nolan and Evan Elder were expected to meet in a lightweight bout at the event. However, Elder pulled out and was replaced by Charlie Campbell. A light heavyweight bout between
Junior Tafa and
İbo Aslan was scheduled for this event. However, the bout was canceled after Tafa sustained an injury. Oban Elliott was expected to meet Jonathan Micallef in a welterweight bout on the preliminary card, but the pairing was cancelled less than 48 hours before the event as Elliott pulled out due to illness. At the weigh-ins, Ramon Taveras weighed in at 147 pounds, one pound over the featherweight non-title fight limit. The bout proceeded at catchweight and he was fined a percentage of his purse, which went to his opponent Jack Jenkins. In addition, the heavyweight fight between
Justin Tafa and Louie Sutherland was removed from the event due to Tafa suffering an illness. ==Results==