[9] Deppen worked for Combat Zone Wrestling for a brief period of time, making his first appearance at CZW Down With The Sickness 2016 on September 10, where he scored a victory against Anthony Henry, Ryan Taylor and Joey Lynch in a four-way match.

[12] At CZW Best of the Best 16 on April 1, 2017, he took part in an Ultimate opportunity eight-man match, coming short to Rickey Shane Page defeated Ace Austin, Alexander James, Caleb Konley, Ethan Case, Flip Gordon and Mascarita Dorada.

[15] At Joey Janela's Spring Break 3 Part 2, Deppen participated in a 72-man battle royal also involving other popular superstars such as A-Kid, Australian Suicide, Homicide, Jake Atlas, JTG, Shad Gaspard, Tracy Smothers and others.

[18] He continued to make sporadic appearances for the promotion, such as at ROH Wrestling #476 where he competed in a three-way dark match against Dak Draper and Wheeler Yuta.

[19] At Final Battle 2020 from December 10, he defeated LSG, Josh Woods and Dak Draper in a four-way match to earn a shot at the ROH World Television Championship.