Coaches & Training Facility

CrossFit Programming Coach C.J. Martin

CJMartinC.J. Martin is a Level 2 CrossFit instructor and former member of the CrossFit HQ training team. C.J. began coaching because he passionately believes in the life-changing benefits of functional fitness. His goal as a fitness coach is to inspire individuals to make long-term lifestyle changes, and he has found that CrossFit’s scalable intensity and commitment to functional movement makes it the perfect program for individuals of all ages and abilities. C.J. believes that the psychology of sport and fitness training plays a vital role in the success of any program.


National Pro GRID League (NPGL) Coach Jeremy Jones “JJ”

Jeremy JonesIn addition to creating all of the daily workouts for the gym Jeremy coaches regular classes, specialty classes, does nutrition counseling, and coaches CrossFit Diablo’s competitive athletes.

Jeremy’s fitness interests started with a number of sports at a young age (baseball, basketball, etc.) but eventually focused on soccer for 9 years before moving on to study the Martial Arts.  He began training under the instruction Robert Yard at Tracy’s Kenpo Karate (a.k.a. Kenpo Jiu Jitsu), becoming an instructor in 1997. While studying under Mr. Yard, he was introduced to the art of Shootfighting (Mixed Martial Arts or “MMA” introduced to the US from Japan by Bart Vale). Jeremy has been coaching Shootfighting since 2000, competing in amateur fights on occasion.

Immediately following an amateur bout in the spring of 2004, Jeremy found CrossFit. Even after winning in the ring, his body was brutally beaten by his first CrossFit WOD (workout of the day). After more than a year of rigorously following the CrossFit method, incorporating it into his Martial Arts practice /teachings, and making occasional visits to the HQ in Santa Cruz, he was certified in the fall of 2005.

Since that first certification, Jeremy has been coaching CrossFit athletes and classes, opening Diablo CrossFit. In 2009 and 2010, he competed on the Diablo CrossFit Affiliate Team as one of the athletes.  Since 2009, Jeremy has coached dozens of athletes to the Regional Qualifier and the World Championships (the “CrossFit Games”).


CrossFit Allstar Coaches and Owners Josh and KC Stallsmith

Josh and KCJosh and KC work as a team to ensure CrossFit AllStar runs smoothly and efficiently. KC credits her husband, Josh as being her main support system that allows her to run the business at peak performance. Both KC and Josh enjoy teaching, coaching, and training at CrossFit AllStar daily. Josh is a CrossFit Level 1 Trainer and has earned his “Attitude Nation” Certification w/ Jon North.  KC is a CrossFit Level 1 Trainer, CrossFit Kids Trainer, CrossFit Gymnastics, CrossFit Kettlebells, CrossFit Football, CrossFit Olympic Weightlifiting, CrossFit Mobility, CrossFit Rowing, CrossFit Judges Course, 200 Hour Certified Yoga Instructor and Practitioner, Current CPR/First Aid/AED Certified, and a Whole 30 Nutrition Seminar attendee.  Their philosophy as coaches and teachers is to nurture every person’s sense of self through the freedom of creative expression and movement. They keep themselves well and healthy in order to serve others; empowering and inspiring myself and others are passions. Through strength, flexibility, creativity and body movement, their goal is to help people feel well and whole.


Where I Train … when in Oregon: “Eugene CrossFit”; when in Waimea on the Big Island of Hawaii: “CrossFit Allstar”; when in San Francisco: “Diablo CrossFit”