Invicta FC 15: Cyborg vs. Ibragimova was a mixed martial arts event that was headlined by an Invicta FC Featherweight Championship bout with champion Cristiane "Cyborg" Justino defending against Russian newcomer Daria Ibragimova. The event was originally scheduled to feature Cyborg dropping down in weight but it was later decided that she would remain at 145 and defend her championship. The co-main event will feature an Invicta FC Strawweight Championship bout with champion Livia Renata Souza defending her title against undefeated challenger DeAnna Bennett. Souza was originally scheduled again to fight Alexa Grasso but it was announced on November 3 that Grasso had suffered an injury. Raquel Pa'aluhi was scheduled to fight Irene Aldana but Aldana was replaced by Colleen Schneider. Angela Hill was scheduled to fight Jodie Esquibel, but Esquibel was replaced by Alida Gray. Amber Brown was scheduled to fight Lisa Ellis, while Christine Stanley was scheduled to fight Shannon Sinn but on the week of the event, Ellis and Sinn pulled out and were replaced by Katy Collins and Shino VanHoose. Two days later, Collins also pulled out due to an injury in training leading to her fight with Christine Stanley being scrapped from the event. A fight between Ediane Gomes and Amanda Bell was scheduled but scrapped the day before the event after Gomes suffered complications with her weight cut. This event was first planned for November and then December before being set for January. Main Card: Cristiane Justino def Daria Ibragimova, Livia Renata Souza def DeAnna Bennett, Colleen Schneider def Raquel Pa'aluhi, Amber Brown def Shino VanHoose, Mizuki Inoue def Lacey Schuckman, Angela Hill def Alida Gray, Megan Anderson def Amber Leibrock.