Invicta FC 52: Machado vs. McCormack was a mixed martial arts event headlined by Valesca Machado defending her strawweight championship against Danni McCormack. Montserrat Rendon was scheduled to fight Alexa Conners, but Conners was forced to withdraw and was replaced by Maria Favela. Favela later withdrew from the fight and the bout was removed from the card. Ramona Pascual was scheduled to fight Amber Leibrock but Leibrock withdrew after signing with PFL and was replaced by Kaylee Vos. However, Pascual was then unable to compete and the bout was removed from the card.

Invicta FC 30: Frey vs. Grusander was a mixed martial arts event to be headlined by Jinh Yu Frey vs. Minna Grusander fighting for the vacant atomweight championship. Alesha Zappitella was scheduled to fight Shino VanHoose but VanHoose pulled out due to injury and was replaced by Jillian DeCoursey. Kerri Kenneson was set to fight Alexa Conners but Conners pulled out due to injury. Stephanie Geltmacher, who had her Bellator fight cancelled on July 12, stepped in to replace Conners.

Invicta FC 28: Mizuki vs. Jandiroba was a mixed martial arts event headlined by Mizuki Inoue vs. Virna Jandiroba fighting for the vacant strawweight championship. The event was originally scheduled to feature Virna Jandiroba vs. Janaisa Morandin for the title but Morandin pulled out of the fight on March 2. Mizuki was initially set to face Milana Dudieva before stepping in to replace Morandin in the main event. As a result, Dudieva was matched against Christina Marks.

Invicta FC 33: Frey vs Grusander II was a mixed martial arts event headlined by a rematch between Jinh Yu Frey and Minna Grusander for the Invicta FC Atomweight Championship.[2]. The two previously headlined Invicta 30 in July where Frey won the championship in a closely contested decision victory. Chantel Coates will meet Ashlynn Kleinbeck in a bout originally scheduled for Invicta FC 31 and that fight will again be planned to air on both Facebook and UFC Fight Pass. Sharon Jacobson was scheduled to fight Kanako Murata but Murata pulled out the week before the event and was replaced by Kay Hansen. At the weigh-ins, Jamie Moyle weighed in at 9 pounds over the strawweight limit and was fined 25% of her purse.