David Lang

David Lang carries a documented history of fabricating Brazilian Jiu-Jitsu credentials stretching back to circa 2010 or earlier, when he was first publicly exposed online — establishing a pattern of disputed claims spanning more than 15 years. Among his earliest fabrications, Lang falsely claimed that Walid Ismail had awarded him a BJJ black belt and that he had coached at Lotus Club in Brazil. Both claims were refuted on record: Walid Ismail and Lotus Club coach Giva Santana publicly denied these assertions in a video, providing direct, named rebuttals to Lang's stated lineage and affiliation.

As of October 2025, Lang's SMOOTHCOMP profile presented renewed credential claims, asserting a 4th degree BJJ black belt under José Pelé Landi-Jons and listing Tribe Martial Arts Academy as an IBJJF-registered gym. An investigation conducted in October 2025 found no record of Tribe Martial Arts Academy in the IBJJF academy registry and no IBJJF black belt certification on file under either "David Lang" or "David Bean." Efforts to verify the claimed lineage with José Pelé Landi-Jons — based in Curitiba, Brazil, where he trains at a local Gracie Barra and teaches Muay Thai — received no response.

Lang's Alabama activity was brought to wider attention by Alan Manley. Jiu-Jitsu Legacy was the first outlet to report the story, publishing its coverage on October 15, 2025, following a related piece on belt buying published on October 14, 2025.

A consistent feature of the documented activity surrounding David Lang is the use of multiple aliases to obscure his verified identity. Lang has been reported operating under the names "Da Silva," "David Mr. Bean," and "Dominic Lang" across various contexts. The SMOOTHCOMP profile for Tribe Martial Arts Academy was registered under both "David Mr. Bean" and "Dominic Lang" — neither of which corresponds to his confirmed legal name.

Investigators established that the individual operating under these aliases is David Lang by cross-referencing photos published on Tribe Martial Arts Academy's social media accounts. The use of alternate names directly complicates verification efforts, including searches of official registries such as the IBJJF black belt database, and is consistent with the broader pattern of identity obfuscation accompanying Lang's disputed credential claims across multiple years. For prospective students or researchers attempting to independently verify an instructor's background, alias usage of this nature presents a significant barrier to due diligence.

As of October 15, 2025, David Lang was operating as the head Jiu-Jitsu coach at Tribe Martial Arts Academy, located in Phil Campbell, Alabama. The academy's SMOOTHCOMP profile claimed IBJJF registration — a representation the October 2025 investigation found to be unsupported, as no listing for the gym appeared in the IBJJF academy registry at the time of inquiry.

Lang's active coaching role carries direct implications for students training at the academy. Individuals receiving instruction and belt promotions from Lang do so under an instructor whose credentials have not been independently verified and whose claimed lineage under José Pelé Landi-Jons remains unconfirmed. The gym's registration under aliases rather than Lang's confirmed legal name adds an additional layer of opacity, raising transparency concerns for prospective students and the broader martial arts community in the region.