Meet the CrossFit Coaches


The District H CrossFit team consists of some of the most experienced and dedicated CrossFit athlete trainers in Houston. We’ve worked with everyone from elite level athletes to those who have never stepped foot inside a gym, and even those working to reverse chronic illness with proper exercise and nutrition. We are excited and motivated to provide a fitness program that creates functional, lean bodies, changes lives, and works for anyone. Meet your fitness team.
  • Tommy Allen


    Tommy is a former collegiate baseball player who has experienced the positive impact of CrossFit first hand. He’s passionate about every individual at District H CrossFit, the community as a whole, and helping others grow and develop. Tommy has a degree in Philosophy and his favorite cheat meal is chips with salsa and queso.

    I love “…seeing the improvements in my own life through CrossFit and how the dedication of a coach can change someone’s life and put them on a completely different trajectory.”


    • Crossfit Level 1
    • Crossfit Level 2
    • Crossfit Football
    • CrossFit Weightlifting
    • CrossFit Gymnastics
    • Westside Barbell Personal Training & Athletic Coaching
    • Eat to Perform Nutrition
  • Rachel Embrey


    When I discovered CrossFit in 2015, and eventually tried a workout after finally being convinced by friends, I was immediately hooked. The crossfit gym I started at in AL needed help coaching, I had already “drank the crossfit kool-aid” as they say and love a good mental and physical challenge so decided to get my Level 1 six months after starting crossfit. I have been coaching ever since and grow more and more passionate about it.  

    I was not much into playing sports growing up and do not have any specific type of athletic background; because of that I’m able to relate to many crossfit members who also do not have athletic backgrounds and might be apprehensive about jumping in and starting their crossfit journey. It presents an opportunity in showing them the diversity among crossfitters and that crossfit can be for everyone.

    Random interesting and maybe not so interesting facts about me: I’m originally from Mississippi, I’m one of those cat lady’s (haha), have a sweet tooth the size of the Grand Canyon, have my BA & MS in Criminal Justice, licensed Esthetician (previous career field), worked as a rape crisis advocate.


    • Crossfit Level 1
  • Dustin Ma


    Dustin is a physical therapist, educator, coach, and self-proclaimed nit-picker by trade. He has been CrossFitting since 2006 and has competed as a martial artist and Olympic weightlifter. He’s a third degree black belt in Taekwondo, Brazilian Jiu Jitsu blue belt, 7th place competitor at the 2013 USA Weightlifting American Open and 9th place at 2014 USA Weightlifting Senior Nationals at 62kg.

    Dustin loves most about coaching at District H that “…everyone listens with an open mind and is willing to better themselves.”


    • Doctorate of Physical Therapy
    • CrossFit Level 1
    • Catalyst Athletics Weightlifting Level 1
    • Whole 30 Nutrition
  • Joseph Lyons


    Joseph started Crossfit 5 years ago.  He decided after a couple of years of being in the crossfit community he wanted to become a bigger part of Crossfit  by becoming a coach because he  enjoyed the connections and friends he made during the times.  He loves the opportunity to help athletes set a goal and then coach them along the way to not only reach that goal but surpass it. I love the moment of excitement with the member(s) when everything clicks after weeks or even months of coaching.


    • CrossFit Level 1
  • Blake O’Connor

    Coach/ Intern

    Blake is extremely passionate about using my knowledge in the the fitness/health and wellness industry to change people’s lives. “If I can inspire someone to think differently or eat differently or just move better than nothing else could be more worth my time”.
    “When I’m coaching my members the best thing is when someone has told me I just dont get this movement and I as a coach can break down a movement to its simplest form and I get to see the light click on and I know they finally understand.”
    Blake played about any sport you can think of.  His most notable sport would be Hockey where he played in several national championships placing 1st and 2nd in the nation over the years as well as playing on the Junior Olympic team in his age group.
    Blake’s  favorite quote would have to be “It Never Feels Good To Look Good”


    • CF-L1 Trainer
    • IFPA CPT
    • IFPA Kettlebell Specialist
    • Rocktape Functional Movement Taping
    • Rocktape Cupping
    • Rocktape Flossing
  • Luis Garcia

    Coach / Intern

    Luis has a degree in Kinesiology.  He has background in football, powerlifting and soccer. He even went to state in high school for powerlifting!!

    “I love the satisfaction of the members when they improve in any skill or lift. I also love coaching because I like pushing people beyond they though possible.”

    Luis Crossfit journey started as a coach in Lubbock when he was attending Texas Tech. He is very passionate about helping people reach their goals, and I’m also very passionate about soccer and weightlifting.

    His favorite quote “Nothing is given, everything is earned”

    Fun fact from Luis he is from Colombia and moves to the US when he was 12 years old, speaks Spanish and English.


    • Crossfit LVL 1
  • Sam Mackinnon, RD

    Registered Dietitian

    Sam Mackinnon, RD, LD
    Registered & Licensed Dietitian/Nutrition Program Manager
    An Atlanta native, Sam graduated from Georgia State University with a B.S. in Nutrition & Dietetics. She moved to Houston to complete her Dietetic Internship through the University of Houston and shortly thereafter became accredited through the Commission on Dietetics Registration in 2011. Throughout her career, she was able to gain clinical, community, and counseling experience in many different areas of nutrition including naturopathic/holistic nutrition, disease prevention and management, as well as weight management and athletic performance. Sam found Crossfit in 2013 and has loved it ever since. She loves her Crossfit clients because of their commitment to their health and well-being. Sam manages our Nutrition Program providing one-on-one nutrition coaching, nutrition seminars, nutrition tips via social media, corporate wellness, and community outreach.


    • Registered Dietitian
    • Licensed Dietitian, State of Texas
    • Bachelor of Science Degree in Nutrition & Dietetics from Georgia State University


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