Austin White was born on August 2, 1997 in the Atlanta suburb of McDonough, Georgia. In 2015, he placed first in the NPC Georgia Bodybuilding Championship, Teen Men category when he was 17.
On August 12, 2016, Theory made his World Wrestling Network debut at Full Impact Pro '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.
Prior to his signing with the company, he participated in a WWE tryout in February 2018. On April 8, during day 4 of WrestleMania Axxess, Theory retained his WWN Championship by defeating Marcel Barthel. On August 15, 2019, it was announced that he had signed a contract with WWE, and would start reporting to the WWE Performance Center. On the December 25 episode of NXT, Theory made his in-ring debut, accepting an open challenge against Roderick Strong for the NXT North American Championship, but failed to win the title. On the January 8, 2020 episode of NXT, Theory achieved his first victory by defeating Joaquin Wilde.
Seth Rollins' disciple (2020–present)
Theory appeared on the March 30 episode of Raw as an associate of Zelina Vega, teaming with Angel Garza and Seth Rollins, where they were defeated by Kevin Owens and Raw Tag Team ChampionsThe Street Profits. At WrestleMania 36, Theory teamed with Garza to unsuccessfully challenge The Street Profits for the Raw Tag Team Championship. The following night on Raw, Theory and Garza were once again defeated by The Street Profits in a rematch for the titles. After defeating Akira Tozawa on the April 13 episode of Raw, Vega's other associates, Garza and Andrade joined him in beating down Tozawa as all three posed together, confirming their status as a faction. However, on the May 18 episode of Raw, he was attacked by Andrade and Garza after accidentally costing them a match against Kevin Owens and Apollo Crews thus kicking him out of the faction. Later that same night, he assisted Seth Rollins and Murphy in attacking Aleister Black, formally joining Rollins' group as a disciple.
