Katharine Moustakes, the Founder of Kathletics

Kathletics was founded in 2017–born from my passion for personal training after transitioning from a career in event coordination. After just a few years in the workforce, I realized my true calling was to help others achieve their fitness goals on their own terms. Taking a leap of faith, I purchased an LLC for Kathletics–and over seven years later, I’ve had the privilege of guiding hundreds of women and men to become stronger, faster, and more confident versions of themselves.

Katharine Moustakes running

Fun Fact - I wasn’t always an athlete. My fitness journey began in college, where I transitioned from being a "cardio bunny" to a dedicated gym enthusiast, eventually embracing all aspects of fitness to become the hybrid athlete I am today. This evolution sparked my passion for coaching, leading me to specialize in hybrid training for both trail enthusiasts and those seeking a balanced lifestyle.

At Kathletics, we believe that strength training and aerobic fitness should enhance your life, not feel like a chore. Gone are the days of choosing between strength or cardio and feeling stuck in a cycle of indecision. Hybrid training offers the best of both worlds, empowering you to enjoy life both in and out of the gym & on and off the trails.

Our Team

Katharine Moustakes

CEO + Head Coach

Hey, I’m Katharine! Your expert lifter, hiker, runner, and outdoor adventurer. My credentials include: NASM Certified Personal Trainer, UESCA Certified Running Coach, AFPA Certified Prenatal and Postpartum Fitness Specialist, Precision Nutrition L1 Coach, CPR / AED and First Aid, and Wilderness First Aid.

With years of experience under my belt, I’ve had the privilege of working with a diverse range of clients, from teenagers to seniors, each with unique goals and lifestyles. My experience spans from prenatal and postpartum women to those focusing on strength after strokes, improving balance and mobility in seniors, and training high school athletes. However, my primary focus is on helping women and men build strength and muscle while also pursuing their passion for running or hiking.

Originally from Nebraska, I moved to Colorado to immerse myself in the outdoors, where I can do what I love most. When I’m not training, you’ll likely find me spending time with family, exploring the trails, listening to audiobooks, or baking up some delicious treats.

Zulu

Chief Barketing Officer

Zulu is our right-paw woman. Although you may catch her snoozin’ on the job, she’s loyal to the company and will do anything for a ball. Zulu is always down for playing outside, eating snacks, and getting belly rubs. She plays an integral role in Kathletics.

Katharine Moustakes dog Zulu

Trusted By Our Loyal Members

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Over these last 6 months, Katharine has helped me push myself to achieve my goals and I am extremely happy with my progress! She has helped me reshape the way I think about food and body image. Thank you, Katharine for helping me feel like my confident self again!

Whitney
Olivia Perez, Yoga Instructor
Emma Rimond

"Zen Soul Yoga has truly transformed my life. The instructors are incredibly knowledgeable and supportive, making every class a unique and fulfilling experience. I feel more balanced and energized than ever before."

Katharine is hands down the best trainer I have ever worked with and with whom I’ve seen incredible results. She is super knowledgeable, patient, and a great communicator. It is very important to me to avoid injury as much as possible, and I love that she has designed and tailored a program for me that pushes me, but also allows me to recover before the next workout so I can continue to progress.

Priya