[2] Stoltzfus started Folkstyle Wrestling as a child, moving to Tang Soo Do, Kung Fu and other martial arts growing up.
[2] After graduating from Lampeter-Strasburg High School, he attended Middle Tennessee State University, where he also got introduced to Brazilian Jiu-Jitsu.
[6] He graduated with Bachelor's in both foreign languages and economics, and subsequently moved to Germany – where he had already studied abroad – in 2014.
[2] Stoltzfus was then invited to face Joe Pyfer at Dana White's Contender Series 28 on August 11, 2020.
He won the fight via technical knockout due to an injury stemming from a slam and was awarded a contract with the UFC.
[12] Stoltzfus was expected to face Anthony Hernandez at UFC Fight Night: Lewis vs. Daukaus on December 18, 2021.
[18] Stoltzfuss faced Abusupiyan Magomedov, replacing injured Makhmud Muradov, on September 3, 2022, at UFC Fight Night 209.