[5] A women's flyweight bout between Viviane Araújo and Alexa Grasso took place at this event.

[8] The pair was also previously scheduled to meet at UFC 270, but Araújo pulled out from that event due to injury.

[9] They were elevated to main event status in early September after the cancellation of the original headliner.

[17] In turn, it was cancelled a day before the event due to weight cut issues related to Askarov.

The bout proceeded at catchweight with Vergara being fined 30% of his purse, which went to his opponent Tatsuro Taira.