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New clients receive a complimentary fitness evaluation and training session at either our Bellevue or Redmond studio locations. Let us help you Find Your Zen.
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ZenRock Fitness

Personal Trainers in Bellevue and Redmond.

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Britt McWilliams

Assistant Manager, Redmond & Personal Trainer

Born and raised in Redmond, WA, I have been involved with the fitness industry since 2012. After giving birth to 2 boys and sitting behind a desk for 7 years doing Medical Billing, I strived for a more active lifestyle. I became obsessed with Group Fitness. I hold a AFAA Level 3 Group Fitness certification and was at one time teaching up to 16 classes a week. These were of various high-energy formats including Zumba, R.I.P.P.E.D., BODYSHRED, Bootcamps, as well as a young child’s music and movement class called Zumbini.

Striving for continuing education and having a strong desire to learn, I shifted my focus to nutrition in 2014. Immediately I noticed a giant lack of coaching and positive support systems for the average individual looking to make smart choices. So I took the love, happiness and high energy aspect of my experience with Group Fitness and combined with the true science based facts of nutrition. Using real food to reset the metabolism, but catering this theory to adapt to the specific client, rather then using cookie-cutter methods. My biggest goal is to show every client I encounter that “eating clean” and being “healthy” doesn’t need to be overwhelming or scary. In fact, it should be fun! I strive to not only provide unconditional support but educate throughout the entire process so that clients can be in charge of their own lives. And that they eventually feel confident to continue making positive choices permanently.Striving for continuing education and having a strong desire to grow, I branched out my certifications to include Personal Training, Nutrition, and an endless list of specialty courses. In 2016, I became a Master Trainer for Jillian Michaels teaching other instructors the BODYSHRED format in Washington, Oregon, and Idaho. I truly believe I have found my life’s calling by being a Coach and Personal Trainer.

When is comes to our bodies, I believe in biomechanics above all else. Whether you are just starting your journey, are an experienced athlete, or recovering from an injury, we will always utilize proven science to establish and define reaching your desired outcome.

My biggest goal is to show every client I encounter that your physical health and exercise shouldn’t be scary. In fact, it should be fun! I strive to not only provide unconditional support but to educate throughout the entire process so that clients can be in charge of their own lives. I want everyone to eventually feel confident to continue making positive choices permanently.

Working with me, clients can expect an experience catered to them, their needs, and their immediate goals. Whether it be with training or lifestyle guidance, the coaching support is always unconditional and non-judgmental.

Professional Certifications:

  • 425 Magazine Best Personal Trainer of 2025 and 2023
  • AFAA Level 3 Group Fitness
  • PRECISION Group Fitness
  • PRECISION Level 2 Nutrition Coach
  • NASM Personal Trainer
  • CPR/AED Certified
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Copyright © 2025 | ZenRock Fitness, LLC
Bellevue Studio: 136 102nd Ave SE, Suite 101 | Bellevue, WA 98004 | (425) 406-0045
Redmond Studio: 18047 NE 68th St, Suite B-100 | Redmond, WA 98052 | (425) 591-9528

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Sunday Yoga Class

Join us on Sunday mornings from 9:30-10:30am at our Redmond Studio. This is an all-levels hatha yoga class taught by Connie Ellis. She will adapt and modify as needed to fit each group. This is a wonderful opportunity to join a yoga community with both beginners and seasoned practitioners.

Register Here