Trainers and Coaches


warren & vlad.

Head Coaches


Warren Grenier and Vlad Goldenstein together as a team share a vision, with their dedicated training regiment you will quickly find your path, and began a new life in fitness and sport.

Our club is host to many different groups and caters to both the young and the young at heart, our club represents a family to those that have joined us and we love watching that family grow.

Both recreational and competitive boxers comprise our membership and we always have an open door to anyone who wants to learn the sweet science. Contact us today to find out more about what we can offer you and become part of our family.

-NCCP National coaches certificate  program level 2  certificate

-AIBA amateur international boxing association certified 1 star coaches

and registered with boxing Alberta


Beginner Boxing Coach “The Mongoose”

Hey, it’s coach Terence and I’ve been boxing for 7 years with the aim to go pro. I’ve had 21 fights and have gained experience from across Canada. Aside from boxing, I enjoy hiking, biking, and drawing. 

Back in Nova Scotia, I had a colleague who told me he used to train at Southpaw Boxing here in Calgary, so when I moved to Alberta I set out to find it and didn’t stop looking until I had. In 2020, I took up the job of coach upon request and I’ve been giving it my all since.


Kids Boxing Coach

Axel began his lifelong love affair with boxing as a teenager, somewhere in the late 80’s. A respectable amateur run, and a short stint in the semi-pro “Casino Circuit” in the 90’s followed. Since then, he has amassed a world of experience as a non-combatant citizen. Axel studied Elementary Education at the University of Calgary and has had success as a writer and publisher, as well as a myriad of other careers. 

As a dad of two and a former athlete, Axel understands the importance of getting kids moving, as well as keeping them interested in the sport. Having seen action in all aspects of boxing, from inside the ring, to coaching and judging, Axel has a wealth of knowledge and experience to help aspiring boxers and newcomers alike. He has been lucky enough to coach kids and beginners at Southpaw for several years, and plans to stay until he goes out like Mickey in Rocky III.”



Personal Trainer and Fitness Coach

Shawna is a certified ACE (American Council on Exercise) personal trainer and an honours graduate of the Applied Nutrition Science Diploma program. 

She is an energetic, optimistic warrior of a trainer! She’s always been drawn to fitness and nutrition through her own personal struggles with mental illness. Through healthier lifestyle choices Shawna continues to learn how our physical bodies affect our brains and their performance. She is passionate about using her experience both in fitness and nutrition to help others within the community find their happiness and health again!. 

Shawna has a long list of experience in recreational sports and fitness including soccer, dance, gymnastics and kickboxing to bring to the table. She has a constant desire to learn more and  uses evidence backed approaches to program planning. She personally understands that having appropriate physical activity levels and proper nutrition can drastically help improve a person’s mental health and their ability to cope in day-to-day challenges!


Mahmood Hussain.

Personal Trainer and Fitness Coach

Hi, my name is Mahmood Hussain and I am one of the trainers at Southpaw Family Fitness. I also compete in amateur boxing representing Southpaw boxing club.

I started boxing at age 16 and fell in love with the sport since the first day I joined this gym. I have gained a lot of knowledge from the coaches at Southpaw in the 5 years that I have been a part of this gym. I have gained knowledge at southpaw not only in boxing but fitness in general and I always look forward to sharing that knowledge with everyone who joins our gym. My training style is intense, but I always look to make the classes enjoyable for our members.

I push my clients to their fullest potential every class and look forward to seeing them come back for more. Let’s get to work! 

Big Dave.

Head oF Personal Training


-Elite master certified Personal Trainer (20 years)

-Contest prep coach specializing in all facets (Bikini, figure, and bodybuilding)

-Kids sports enhancement

-Strength, conditioning, and powerlifting

-Sports supplementation

-Trainer for all ages and levels 

Roy Hertz.

Personal Trainer

Personal Trainer and nutrition consultant.

R.N. Background.

-The knowledge I gained from R.N. degree allowed me to understand how the body functioned from a food and training aspect.

-Let me Help you to achieve your goal!!

-Contact me at

– With 39 years in the gym myself, and 27 years training people, I have used this experience and knowledge to help many people achieve all kinds of goals

Bodybuilding competition record:

-1st place at southern Albertas (ABBA)

-1st place at Albertas (ABBA)

-Twice in final 5 at nationals (CBBF)




Join Now