Owner – Head Coach

John Hallett

John founded Rocky Mountain Krav Maga in November 2005. He is a 4th Degree Black Belt with the Krav Maga Alliance under John Whitman former President of Krav Maga Worldwide, KMA FORCE: Military and Law Enforcement Certified Instructor, a certified Level 5 Krav Maga Instructor with Krav Maga Worldwide, Level 2.5 Instructor Under Todd Fossey of INTEGRATIVE DEFENSE STRATEGIES a Fitness Trainer, Movement; Mobility Trainer, Gymnastics Trainer, Olympic Weightlifting Trainer and a 2nd Degree Black Belt in Tae Kwon Do. He also has accolades in Hapkido and grappling. Currently, he is pursuing further advancement in Firearms Training For The Armed Civilian (IDS), Krav Maga, functional fitness, and MMA.
John started his interest in Martial Arts in 1992. He began teaching in 1997. John formed Krav Maga Nantucket and Revolution Martial Arts in 2000 and ran these programs until October 2005. He maintains his strive for excellence not only for himself but also for his students.
John believes that Krav Maga offers a better all-around fighting and self-defense system for both men and women. He finished the final phase of instructor training for Krav Maga in 2004 and is now working on the last expert series of Krav Maga training. John was also selected to the Krav Maga Train the Trainer program in 2007. This is a small group of Instructors from across the country who are trained to conduct Instructor certification courses.
John’s approach to fitness is one of a martial artist combined with a fitness enthusiast. He believes that his classes offer the best combination of fitness training for everyone, from the beginner to the more experienced student. Because he gives his heart to all of his programs, students quickly excel beyond their own initial expectations.
John added the fitness program to the training center in 2007. It is his feeling that it’s the best all around fitness training for Life, Sport & Self Protection. It is a workout program that works for the elite athlete as well as couch potatoes looking to get in shape.
“Lead By Example”
John is a member of a select group of Krav Maga instructors who have “train the trainer” status. Under the auspices of the Krav Maga Alliance, these individuals help conduct training courses to certify new instructors and increase the knowledge of existing instructors. There is no higher honor the Krav Maga Alliance can bestow than to allow an individual to help build the next generation of instructors.
The authorized bearer of this insignia has proven his or her dedication to the Krav Maga system, and to helping others become safer and stronger.
The motto of the Training Team is “Lead By Example.” The members of the Alliance Training Team have, prior to their selection, proven themselves to be examples to their peers through hard work, depth of knowledge, and devotion to excellence.
John Whitman Founder, Krav Maga Alliance

Owner – Head Fitness Coach

Jenny Jaeger

“Even Slow Progress Is Progress”

Jenny Jaeger has been involved in ProjectFit since April 2009 after the birth of her 2nd child. After years of lifting weights, running, swimming and biking she found ProjectFit. She believes it is THE strength and conditioning program that achieves results. The combination of weightlifting with cardio conditioning and quantitative results provides a diverse program that keeps athletes engaged. She became ProjectFit Level 1 Trainer, Movement and Mobility Trainer, Gymnastics Trainer, and Olympic Weightlifting Trainer. Her passion is to help athletes of all abilities and ages achieve their fitness and health goals. She takes a special interest in helping athletes hone in their diet.
Jenny partnered with John in 2012 to become a co-owner at RMSDF. Reaffirming her commitment to bettering people’s lives through Self Defense & Fitness. A large part of ProjectFit is “mind over matter”. When people push themselves just a little more every day, or just try for “one more rep” it’s amazing to see what that does for their spirit. Whether you are just getting off the couch or have been involved in Fitness for years, she works to create an atmosphere of inclusion at all levels and a team spirit within the gym. She wants to foster an environment where all ability levels can thrive and achieve their goals.


Tom Marks
At age 40 Tom was looking for a new challenge. He was always interested in Martial Arts, but was looking for a program that was practical, efficient and proven on the street. Tom started training in Krav Maga at RMSDF in January 2007. In order to deepen his understanding of the system, Tom became an instructor in 2010.
Tom enjoys teaching and watching people develop the mindset of never giving up, both mentally and physically.
Tom trains in crossfit because he believes it pairs perfectly with Krav Maga to meet whatever challenges today may bring.
Tom is employed full time as a Captain with a Denver based airline.

Tyler found Fintess while serving in the US Army, after becoming bored with the traditional “Back and Bi’s,” “Chest and Tri’s,” and “Leg day” so common at most gyms these days. Tired of spending hours at the gym, he began looking for ways to speed up his time exercising, while still getting a good workout. In 2008, while preparing to deploy to Iraq, a buddy of his introduced him to a fitness website and the WODs and pushed him to try it. Not being totally sold on the idea, it took until he returned back home in 2009 before he tried his first WOD…Thrusters, Burpees and Walking Lunges. This simple Triplet left him lying on the ground, pale, sweating and gasping for air after only about 15 minutes of work…He was hooked and wanted to know more.
By 2011, he knew that he found the program he had been searching for, and played around with the idea of one day opening his own Fitness box and sharing his love for the program with others. Tyler and his family relocated to Castle Rock, and after checking out other Fitness boxes in the area, he stopped in at RMSDF and after a brief conversation with John and Jenny. He knew right then he had found the right Fitness box for him. In 2013, he began the RMSDF apprenticeship program and attended both the Weightlifting, Level 1 Trainers Course, and Mobility courses. Tyler loves coaching and helping people to achieve their goals and accomplish things they never thought possible.
“Seeing the smile and sense of accomplishment on an athlete’s face after they’ve hit a milestone is awesome, there’s nothing better than that.”

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