About Ironworks Gym Combat Trainers
Nick Sperling
As a mixed martial artist, I trained for over twenty years. During that time, I’ve spent twelve years fighting inside the cage for various organizations such as: Cage Warriors, Pure Combat, Gladiator Challenge, King of the Cage, and Bellator. In September of 2013
I won the Gladiator Challenge 135 belt. I have trained under amazing coaches such as Mike Rumsey, Lisa Jeanson, Michael Quaintance, and Jamie Jara and even had the privilege of being in three out of the four of their corners for their professional fights. As a coach I have helped fighters chase their fighting dream in multiple organizations with two students having undefeated records and another student winning the Pure Combat title. In addition to helping students obtain their fight dream, I have helped countless students use MMA to lose weight, get stronger, and build confidence.
Our fight style at Ironworks MMA favors striking, although, we are a well-rounded team. We put emphasis on mastering the basics, and perfecting technique. What I am most proud of is not the titles or belts I’ve received, but the friendships with coaches and students I’ve made.
Oliver Berkland
I have been training multiple times a day since 2021 and coaching since the winter of 2023. Having competed in multiple Muay Thai and Point Boxing tournaments I have become a valued coach who is also an active fighter currently training in MMA. I grew up scrapping in Iowa, I used training and competition to get me out of destructive habits. I now use what I love to do (fight) in a positive manner. Training has helped me to become a positive roll model and mentor to kids, especially those that are growing up in circumstances similar to mine.
What started off as a hobby in boxing for me, quickly became love. The grind of getting better and the sense of togetherness training brings to the community is what inspires me.
I have now coached and cornered multiple fighters and have a positive win/loss record in sanctioned competitions.
Bob Diminyatz
Bob is an American Jiu-Jitsu black belt who has studied under masters Christopher Bradford, Clement Shields and Jacob Horton. He is a successful competitor with years of teaching experience. His grappling style is a blend of American Folkstyle wrestling and classic Jiu-Jitsu. As a coach he has a high standard for technique and high expectations for his students. His number one goal as a coach is to give all of his students a deep understanding of grappling. His students often say he has a special way of making complicated techniques and concepts easily digestible.
Damian Mustante
Former U.S. Marine who fought in Fallujah, Iraq. He was a member of Infantry and Scout/Sniper Platoons and trained in direct action counter-terrorism operations. Now also a former member of Tier 1 special missions unit for Ukrainian Defense Intelligence Service (GUR). Damian has been a part of Combat since the days of T5 and acts as an advanced instruction overseer.
STRIKING INSTRUCTOR:
Muay Khao - This style of Muay Thai is a pressure system which focuses on clinch & knee techniques.
GRAPPLING INSTRUCTOR:
Catch Submission Wrestling (CACC) - A submission grappling system based in freestyle wrestling and pankration.
MILITARY MMA:
Marine Corps Martial Arts Program (MCMAP) - A mission specific fighting system, used by elite direct action Marine Corps units for combat applications.
Knife Fighting - Derived from Krav Maga and MCMAP. Strategies and techniques to survive and win knife confrontations.
Over 10 years experience as a nightclub bouncer. Trained and experienced in team fighting against multiple attackers.