Our Coaching Staff

Our coaches are all highly trained and certified professionals with a life-long dedication to wellness, health, fitness and livin’ BIG. Experienced at managing groups, as well as working with individuals in a one-on-one setting, our staff will teach, motivate and inspire you to get (and stay) in shape.

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    Justin Marcis

    Founder & Owner

    Founder of Windy City Strength & Conditioning, Justin's goal is to inspire and lead individuals to long-term health, fitness and happiness. More

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    Esther Kim

    Operations Manager

    The community of people of all ages and fitness levels is truly what inspires Esther. More

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    Bradley Hillhouse


    Bradley firmly believes in harnessing the greater whole of community through the shared struggle and gain of fitness. More

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    Gabriel Velasco

    Membership Manger

    If you don't make time for exercise, you'll probably have to make time for illness. More

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    Marley Wahler


    Hopes to inspire a love of fitness across all age ranges. More

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    Rosi Parejo



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