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Head Instructor

Greg Halsor has spent over 20 years in the grappling arts. Growing up wrestling in Iowa, he was a state champion for Cedar Falls High School in 1993 and went on to be a collegiate All American in 1997. After college, Greg and his family moved to Crystal Lake, Illinois where he met current WEC/UFC veteran Jeff Curran and fell in love with the sport. Greg began teaching Brazilian Jiu Jitsu in the Cedar Valley in 2000. He is one of the only Brazilian Jiu Jitsu Black Belts in Northeast Iowa and one of the highest ranking practitioners in the state. 


Assistant Instructor

"Nitro" Neal Titus has been practicing jiu jitsu for 10 years and has been an active MMA fighter. Neal is best known for his explosive technique and the ability to improvise using innovation and sound technique. When he is not training, Neal is a regional manager at Mudd Advertising in Cedar Falls.


Assistant Instructor

Dustin "The Mantis" Lilleskov began training martial arts as a college student, studying Taekwondo and kickboxing under Russ O'Connell. During this time, the UFC and mixed martial arts exploded in popular exposure, largely due to "The Ultimate Fighter" TV show. So, after earning his black belt in Taekwondo, Dustin thought that he needed to learn jiu-jitsu "just enough" to be able to neutralize grappling in an MMA fight or self-defense situation. He began taking jiu-jitsu classes (next door at the ROC Gym) under Greg Halsor. After a very rough break-in period, he finally figured out how to make some grappling techniques work against strongly resisting opponents, and from then on he was in love with the deep and practical "gentle art."


Dustin has put in over ten years of training in jiu-jitsu; his favorite part is studying new teaching and integrating new technical concepts. There are always better ways to discover to more efficiently subdue a strong opponent. Dustin believes a true martial artist is always learning, refining, and developing their self and their technique. He agrees with the motto that one learns best through teaching, and he greatly enjoys teaching new and experienced students the building blocks of jiu-jitsu. In addition to teaching Jiu-Jitsu Fundamentals, Dustin teaches middle and high school art in Waterloo.

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