Supreme Athletics

JB Athletics, founded by owner Jason Alfonso, is a fitness center in Gaithersburg, MD that is dedicated to transforming clients into better versions of themselves. With a positive and family-like atmosphere, JB Athletics offers a community where everyone fits in, providing virtual training, personalized one-on-one at-home workouts, online coaching, group classes, corporate wellness programs, and specialized athletic training.

Jason Alfonso, a certified personal trainer, specializes in functional training for sports and foam rolling. Having once weighed 225 lbs himself, he understands the challenges of achieving a healthy lifestyle and is committed to helping others make positive changes. Whether you are a beginner, experienced in the gym, or an athlete, JB Athletics offers a tailored program for all fitness levels and goals, focusing on strength training, conditioning, mobility training, nutrition, and injury prevention.

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