Viviane Araújo was expected to face Alexa Grasso in a women's flyweight bout.[3] The pair was previously scheduled to meet at UFC 270, but Araújo was forced to pull out from the event due to injury.[4] In turn, Grasso pulled out due to visa issues and the bout was scrapped.[5]
A women's strawweight bout between Yazmin Jauregui and Istela Nunes was expected to take place at the event.[6] However, Nunes withdrew due to injury and was replaced by Iasmin Lucindo.[7]
A flyweight bout between Malcolm Gordon and Allan Nascimento was expected to take place at this event.[10] However, Gordon pulled out in late July due to an undisclosed injury and the bout was scrapped.[11]
A bantamweight bout between Youssef Zalal and Cristian Quiñonez was expected to take the event.[16] However, Quiñonez was pulled from the fight due to alleged visa issues which restricted his travel and was replaced by Da'Mon Blackshear.[17]
A welterweight bout between Jason Witt and Josh Quinlan was expected to take place one week prior at UFC on ESPN: Santos vs. Hill, but it was moved to this event after Quinlan was pulled for an atypical drug finding: long-term metabolite (or M3 metabolite) of the steroid dehydrochloromethyltestosterone (DHCMT) in his urine sample. They met in a catchweight of 180 pounds.[18]
The following fighters received $50,000 bonuses.[22]
Fight of the Night: Nate Landwehr vs. David Onama
Performance of the Night: Marlon Vera and Tyson Nam
Reported payout
The following is the reported payout to the fighters as reported to the California State Athletic Commission (CSAC). It is important to note the amounts do not include sponsor money, discretionary bonuses, viewership points or additional earnings. The total disclosed payout for the event was $1,708,000.[23]