Mark Grijalva

Mark Grijalva is the owner and operator of MGM Fitness. He is a Certified Personal Trainer, who has over 14 years of experience within the fitness realm. He has a wide range of experience and education that provides him with the knowledge, training and professionalism to work with youth, adults and seniors. Mark focuses on teaching all client’s basic fundamentals to an exercise program while he works with each client on reaching their individual goals whether it be to lose weight, increase muscle mass, increase cardiovascular endurance, sport conditioning and/or overall strength.

Mark has a passion for fitness and takes his role seriously on how he can help each client reach and sustain their personal fitness goals. He encourages every one of his clients to learn, build and sustain a healthy lifestyle.

He also understands the dedication it takes to live a healthy lifestyle as he personally, in earlier years, has struggled with sustaining a healthy balance in his own life.


Mark Grijalva instructs the following:
  • FIERCE Cardio
  • FIERCE Cardio is a beginner friendly, power driven and explosive class that incorporates kickboxing techniques, high intensity interval training (H.I.I.T.) and strength training. Although you will be physically and mentally challenged, you will finish FIERCE Cardio feeling re-energized, empowered and motivated.


  • MGM STRONG
  • In this class you will receive detailed instructions on how to correctly execute a variety of power movements while incorporating the use of Barbells, Dumbbells and Kettlebells.  This class is kept small to ensure everyone is assisted during the class.  The class enrollment maxes out at 8 per class. 

  • Mark Grijalva's Explosive Athletic Training Program

  • Tabata/Circuit Training (All Levels)

  • Saturday Cycle
  • Saturday Cycle is a 45 minute cycling class offered on Saturday mornings. Get your weekend started with a ride that will get you in the zone. This class will challenge your strength and endurance with interval drills all while pedaling to up-tempo music guaranteed to get you in the right mindset for whatever the weekend brings your way.