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Hosted by 3rd Degree Black Belt World Champion James "300" Foster. The Spartan Underground features guests from the world of Brazilian Jiu-Jitsu, friends of Professor Foster, and those invol...
This episode features arm wrestling legend Devon "No Limits" Larratt and his son Auden. We talk arm wrestling, comic books, what wish we'd a...
This episode features my longtime friend John Garnett and documents his journey from success in Hollywood, to suddenly being overcome by yea...
This episode features my student Katie "Wonder Woman" Egan. We discuss how she became an inspirational figure, securing sponsorships, advice...
The return episode featuring my friend and mentor Luka Hocevar, AKA the Strength and Conditioning industry guru!
An equipment test disguised as an announcement about the return of The Spartan Underground Podcast.
In lucky episode 13 Professor Foster had the opportunity to chat with professional Marvel Comics artist and fellow BJJ Black Belt Ron Garney...
The first episode of 2018 features none other than Everybody Panic! front man (lead singer) and Gracie Jiu-Jitsu Black belt Ty Gay!
In this year end Star Wars Special episode, my brother in law and I discuss all things The Last Jedi *SPOILER WARNING* and beyond!
This episode features a true pioneer of the BJJ and MMA instructional market, Stephan Kesting!
This episode features up and coming BJJ & MMA superstar, Atos Black Belt Kristian Woodmansee.
This episode features none other than Rickson Gracie Black belt Henry Akins!
First ever solo question and answer (Q&A) episode with host James "300" Foster!
This episode features professional comic book artist Tom Nguyen. He has done work for DC, Marvel, and many of the other top companies in the...
This episode features Bear Quitugua, the owner and founder of the hugely popular Jiu-Jitsu uniform and apparel brand Shoyoroll. This intervi...
Our special New Years Eve episode features Hollywood filmmaker and BJJ Brown Belt Matthew Hickney. This fun filled conversation covers numer...
In this episode I have a great chat with my friend and fellow Ultra Heavy Squad member Jonathan Mui!
Episode 2 is a double feature with Julia Gumpert of Mission 22 followed by the founder of Nous Defions Jeff Perez.
Special inaugural episode featuring Pedro Sauer 3rd Degree Black Belt, Professor Keith "The Rhino" Owen.