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Coach Jimmy Greninger

*National Academy of Sports Medicine


*USAW LV1 Coach (Under Coach Pendlay)

*API Caveman Certified Instructor

*UFC LV5 Certified Head Ultimate Trainer

*BioDensity Certified

*DotFit Nutrition Certified

*CPR/AED Certified

*CQC Scientific Fighting Congress Member

*B.A. in Psychology from CSUN

   (California State University Northridge)

   *2008 CrossFit LV1 Coach

   *2009 CrossFit Football Coach

   *2009 CrossFit Nutrition Coach (Under R.Wolf)

   *2010 CrossFit Running/Endurance Coach

   *2013 CrossFit Mobility (Under K. Starr)

   *2014,15,16,17,18,19,20,21 CrossFit Judges Course

   *NV State Athletic Commission Credential

   *CA State Athletic Commission Credential


Jimmy was drafted out of High School by the California Angels in the 7th Round. A highly recruited DIV1 scholarship Athlete, he played both Football and Baseball, was a Team Captain and earned a Degree in Psychology from CSUN. Jimmy was picked up by the Packers and Chargers as a Wide Receiver/Kick Returner before a reoccurring injury kept him sidelined for good. In 2006 Jimmy found CrossFit through his childhood friend, Jeremy Jones, founder of Diablo CrossFit and was instantly engulfed into the CF lifestyle. Jimmy embraced his love for Coaching and started Teaching CrossFit in 2006 and received his CF LV1 in 2008. Coach Jimmy became a Professional UFC MMA Trainer/Corner man and has worked with some of the biggest Super Stars and Champions of the UFC and StrikeForce. Coach Jimmy has also prepared and trained several active Marines, NAVY SEALs, ARMY Rangers, Green Berets, Para-Jumpers and NFL players. Coach Jimmy Designed and Implemented the “DUT” Training Program that is run in all UFC Gym locations World Wide and has helped to build some of the Largest CrossFit, Fitness and Nutrition programs in California. Coach Jimmy is Founder of the multi-sponsored “UFC Competition Team” that races in EPIC Series, Tough Mudder, Spartan Race, Warrior Dash, GORUK Challenges and Urban Athlon events. Jimmy was Co-Founder of the MMAJacked Training Center w UFC Legend Chuck Liddell, Jimmy is Founder of the Sterling Aviation Pilot Fitness Club, Co-Founder of The Modern Caveman Challenge and Co-Fitness Editor of the published “Caveman Diet Handbook.”

Jimmy has had the privilege and Honor of Training several Officers from the following Agencies:






US Coast Guard


US Special Forces

Central County SWAT

Marin County SWAT

Oakland SWAT

West County SERT

Sacramento PD

Pittsburg PD

Berkeley PD

San Ramon PD

Oakland PD

Martinez PD

Walnut Creek PD

Concord PD

San Francisco PD

Hayward PD

Santa Barbara PD


Alameda County SD

Contra Costa County SD

Monterey County SD

Marin County SD

Antioch PD


Mountain View Fire Dept

San Ramon Fire Dept

San Francisco Fire Dept

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