On August 12, 2016, Theory made his World Wrestling Network debut at Full Impact Pro (FIP)’s Heatstroke, alongside AC Mack. On January 7, 2017, at Style Battle, Theory was defeated by AR Fox. At FIP Everything Burns, Theory defeated Anthony Henry. Theory made his Evolve debut at Evolve 78, defeating Darby Allin. At Evolve 79, Theory lost a four-way match to Chris Dickinson. At Evolve 80, he lost to Ethan Page. At Evolve 84, he was defeated by Lio Rush. At Evolve 88, he defeated Ethan Case. The next night at Evolve 89, he defeated Trent Beretta.
At Evolve 97, Theory defeated Fred Yehi to win the FIP World Heavyweight Championship. At FIP Everything Burns, Theory retained his title against Martin Stone. At Evolve 100, Theory failed to win the Evolve Championship against Zack Sabre Jr. At Evolve 103, Theory defeated Keith Lee to win the WWN Championship, ending Lee’s 175 day reign. At Evolve 106, Theory lost the WWN Championship to Joey Janela. On September 30 at Accelerate, he lost the FIP World Heavyweight Championship to Anthony Henry. At Evolve 117, Theory defeated Fabian Aichner and Roderick Strong to win the Evolve Championship. At Evolve 139 on November 9, 2019, he lost the Evolve Championship to Josh Briggs.
