Meet the CrossFit Coaches


We’re a small gym with a big heart, and that passion starts with our coaches! These folks have all the insight, training and experience to get you in the best shape of your life (and make sure you have a blast in the process).
  • Jason Doherty

    Owner/Head Coach Jason Doherty was a successful classical musician before he became a CrossFit coach. “Playing in orchestras all over the world is why I was a member of so many different boxes!” he says.

    He’s been a member of CrossFits in Philadelphia, Singapore, Guatemala, Kuwait, Spain, and Texas. “All of these gyms have given me great things,” he says. “I’ve tried to create a gym that uses all the best aspects of these different boxes.”

    Jason specializes in Olympic and power lifting, and he’s passionate about making his gym as welcoming to the beginner as it is to the elite athlete, as well as “creating a community in which everyone has a place and is seen,” he says.

    His favorite quote is “Yesterday I was clever, so I wanted to change the world. Today I am wise, so I am changing myself.” – Rumi


    • CrossFit Level 2
    • CrossFit Kids
    • CrossFit Kettlebell
    • CrossFit Powerlifting
    • CrossFit Gymnastics
    • CrossFit Mobility
    • USA Gymnastics Trainer
    • USA Weightlifting Sports Performance Coach
  • James Grubbs


    Coach James has been going CrossFit for a year and a half. He grew up playing Varsity football, running track and playing golf. However, he came into CrossFit extremely out of shape, not really knowing what to expect. He stuck with it, and after the first few months, he was addicted. He was how CrossFit was completely changing his life, and he knew he wanted to help others change their lives through fitness. The opportunity to coach came along, and he jumped in head first!

    James specializes in Olympic lifting and mobility. He says, “I’m passionate about being able to teach people functional fitness that will help them live a long, happy, healthy life. I truly believe CrossFit is for everyone, and I love seeing how it can help people with all different types of physical abilities. Whether you want to be a competitive athlete, or if you just want to be able to squat down to pick something up off the floor.” His favorite thing about coaching is seeing how excited his members get when they hit new personal records. He says, “It’s shows how their hard work is definitely paying off!”

    When James isn’t in the gym, he loves taking camping trips with his wife and daughter, as well as watching college football.


    • CrossFit Level 1 Trainer
  • Mason Ohendalski


    Coach Mason “Mayo” Ohendalski has been CrossFitting for just over a year, but has been training for nine years. He was a high school athlete in football (Team Captain, Acadmeic All-State Honorable Mention), wrestling, track & field. He continued to play football in college at Wheaton College.

    He says, “I found CrossFit when I transferred to UNT. I had done Olympic lifting and years of strength and conditioning before, but CrossFit was nothing like I’d done before, and I immediately loved it! A year passed while I built relationships with the coaches and members of the gym, becoming more involved in open gym and the weightlifting class. During that time, I was advancing my education in Kinesiology at UNT, and I completed an internship at the Adaptive Training Foundation in Carrolton. When my internship finished, Jason talked to me about an internship with CF Gonzo which eventually led to a coaching opportunity. Becoming a CF-L1 Trainer took much more work than I assumed it would, but it’s been such a wonderful growing process and I”m very excited for what the future holds!” He specializes in Agility/Explosive Power Training.

    Mayo is passionate about serving others and feels he can have the greatest impact through sharing his love of exercise to people that need it. He loves being able to help his athletes and friends achieve things they never thought they could. He loves coaching the members at CF Gonzo because they make that time fun! He says, “Coaching is my best stress relief from school because the members are so awesome! I don’t ever go through a class without laughing hysterically at least once…especially in my 7:00pm class!”


    • CrossFit Level 1 Trainer
  • Chloe Tate


    Chloe works hard to not only motivate athletes, but to build valuable relationships and energize the environment. “I am passionate about people,” she says. “I love coaching CrossFit because seeing our members work hard and push themselves inspires me and fires me up for life.”

    Chloe has been an athlete since college, and when she isn’t coaching at CrossFit Gonzo, she coaches high school volleyball. “My players make me laugh, I love being energetic and crazy with them, and I enjoy teaching them skills that they will use throughout their lives.” Chloe found CrossFit 6 years ago, and for her its more than just fitness. “I have an emotional connection with the sport of CrossFit and being around people who feel the same as me enriches my life in ways I can’t even put into words. There is no way to reciprocate the feeling of community and competitive spirit the way CrossFit does, and that is why I coach.”

    When Chloe isn’t coaching volleyball or CrossFit, she loves to be outside longboarding, going to concerts, and spending time with friends and family.


    • Bachelors of Science in Kinesiology from Texas Woman’s University
    • All-Level Physical Education (Teaching Certification)
    • Special Education EC-12 (Teaching Certification)
    • CrossFit Level 1 Trainer
  • Nicholas Waldum


    Coach Nicholas Waldum has been a CrossFitter since 2016 and specializes in Aerobic Capacity, Mobility, and Gymnastics. With his wife, he discovered CrossFit in 2016, and knew it was a good fit. “CrossFit has changed our lives in so many ways. The most impactful being the deep friendships we’ve made.”

     An avid athlete with a background in varsity golf and baseball, Nicholas’s experiences have fostered a desire to help others accomplish their goals through instruction and coaching. He says his favorite part of coaching is, “The moment at the end of a workout when everyone hits the floor. You can see the athlete is in pain but at the same time you see the joy in them that the workout is over. I love seeing how proud they are of themselves at what they accomplished.”

    When Nicholas isn’t coaching, he loves to spend time outside with his family and watching Raiders games.


    • CrossFit Level 1 Trainer
    • CrossFit Aerobic Capacity
    • Titleist Performance Institute Level 1 Golf Fitness Instructor


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