Structured sessions for novices covering basic poses, combos, and stretches with patient coaching.
High-level combat practice for experienced boxers, focusing on professional techniques and strategies.
One-on-one mentorship to help members reach specific fitness and boxing goals tailored to their level.
Dynamic group exercises to build endurance, strength, and flexibility in a motivating atmosphere.
Organized activities and sessions that foster a supportive, no-judgment environment for all participants.
Slay is a very professional instructor and real boxer. The training includes warm up, boxing poses and combat combos. And at the end with the stretches. If you wanna do real boxing. This is the right place. HIGHLY RECOMMENDED!!! Love it absolutely !
The class was amazing — I’m a complete novice but the prof Sylvra was super patient explained the moves clearly. Good vibes no judgement 10/10
This gym is a really weird place. Meaning that there's a lot of delinquent. The coaches do not really help the people that they want to experience high level of boxing. I was used has a sparring partner for the professional boxers. They punch really dirty way. I wanted to be a professional and I was new to that sport so if you're new you shouldn't be doing sparring against high level boxers. I was innocent and thought that they were helping me. From now I have mental health and I blame the coaches. I don't have money now and I have hard mental health. If a lawyer read this I would like help. Thank you
solid gym with extremely motivating and dedicated coaches, coach sly is really patient and meets you where you’re at!
Fantastic staff and motivating people! Coaches are very approachable, down to earth, and extremely knowledgeable about general fitness and boxing. Underdog isn't just a gym for boxers it's a space to reach your fitness goals. Just be open about what you want to achieve and mentors like coach Lou will help you get there!

Train like a champion in a supportive, no-judgment boxing community.
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UNDERDOG BOXING GYM in Montréal is a premier sports club offering authentic boxing training for all skill levels, from beginners to professionals. Our dedicated coaches, including Slay and Sylvra, provide personalized instruction in warm-ups, techniques, combos, and sparring in a motivating, inclusive environment. Whether you're aiming for fitness, skill development, or competitive boxing, we foster a community where everyone can achieve their goals with expert guidance and positive vibes.
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