Mark Sweigart


Mark has been training Brazilian Jiu-Jitsu since 2010. On his first day of class, Mark was amazed at how smaller opponents, 70-80 lbs lighter, could control him with little effort, rendering his physical abilities useless. From that point on, Mark was hooked, training every chance he had.

Mark received his purple belt from his long time instructor Brian Fisher. Mark has experience in several other martial art disciplines as well, none of them attracting him in the way BJJ has. Beyond competing in Brazilian Jiu-Jitsu/Submission Grappling tournaments, Mark has also competed in Mixed Martial Arts. This has given him an understanding of how to adapt traditional Brazilian Jiu-Jitsu into MMA.

Mark is a Certified Strength and Conditioning Specialist, CSCS, through the National Strength and Conditioning Association, the leading sports performance institution in the country. Having received his Bachelor's Degree in Exercise Physiology from West Chester University, Mark has a deep understanding of the body's physiology and applies this knowledge to his martial arts instruction.


Shane Mock


Shane began training in 2003, receiving his Black Belt in 2011 from Rosendo Diaz. Shane has been heavily involved in our affiliate school, Berks Brazilian Jiu-Jitsu since 2006, where he still teaches today, in addition to his LBJJ classes.

He has been a referee for NAGA since 2008, traveling all over the world. In addition to refereeing, Shane is an avid competitor and has competed at every level, still competing today.


Keith Neff


Keith started Brazilian Jiu-Jitsu training in 1999 under Royler Gracie-David Adiv 1st degree Black Belt Rosendo Diaz. Keith has been teaching BJJ classes since 2003 and opened the Lancaster BJJ school with Brian Fisher (BJJ Brown Belt) in 2008. In October of 2009, Keith received his Black Belt from Royler Gracie, David Adiv and Rosendo Diaz.